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Finding the Fourth Proportional to 60,359.80, 90,539.70 and 36,999.40

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Solution

The fourth proportional to 60,359.80, 90,539.70 and 36,999.40 is: 55,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,359.80 : 90,539.70 = 36,999.40 : x
  2. Step 2: Convert to fraction form
    60,359.80/90,539.70 = 36,999.40/x
  3. Step 3: Cross multiply
    60,359.80x = 90,539.70 × 36,999.40
  4. Step 4: Simplify right side
    60,359.80x = 3,349,914,576.18
  5. Step 5: Solve for x
    x = 3,349,914,576.18/60,359.80
  6. Step 6: Final answer
    x = 55,499.10

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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.