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Finding the Fourth Proportional to 60,100.48, 90,149.70 and 17,980.66

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Solution

The fourth proportional to 60,100.48, 90,149.70 and 17,980.66 is: 26,970.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,100.48 : 90,149.70 = 17,980.66 : x
  2. Step 2: Convert to fraction form
    60,100.48/90,149.70 = 17,980.66/x
  3. Step 3: Cross multiply
    60,100.48x = 90,149.70 × 17,980.66
  4. Step 4: Simplify right side
    60,100.48x = 1,620,951,104.80
  5. Step 5: Solve for x
    x = 1,620,951,104.80/60,100.48
  6. Step 6: Final answer
    x = 26,970.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.