Home / 53,980.75-74,490.06-30,108.97

Finding the Fourth Proportional to 53,980.75, 74,490.06 and 30,108.97

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Solution

The fourth proportional to 53,980.75, 74,490.06 and 30,108.97 is: 41,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,980.75 : 74,490.06 = 30,108.97 : x
  2. Step 2: Convert to fraction form
    53,980.75/74,490.06 = 30,108.97/x
  3. Step 3: Cross multiply
    53,980.75x = 74,490.06 × 30,108.97
  4. Step 4: Simplify right side
    53,980.75x = 2,242,818,981.84
  5. Step 5: Solve for x
    x = 2,242,818,981.84/53,980.75
  6. Step 6: Final answer
    x = 41,548.50

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.