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Finding the Fourth Proportional to 60,287.85, 90,422.85 and 15,917.70

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Solution

The fourth proportional to 60,287.85, 90,422.85 and 15,917.70 is: 23,874.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,287.85 : 90,422.85 = 15,917.70 : x
  2. Step 2: Convert to fraction form
    60,287.85/90,422.85 = 15,917.70/x
  3. Step 3: Cross multiply
    60,287.85x = 90,422.85 × 15,917.70
  4. Step 4: Simplify right side
    60,287.85x = 1,439,323,799.45
  5. Step 5: Solve for x
    x = 1,439,323,799.45/60,287.85
  6. Step 6: Final answer
    x = 23,874.19

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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.