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Finding the Fourth Proportional to 60,489.60, 90,695.52 and 28,882.56

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Solution

The fourth proportional to 60,489.60, 90,695.52 and 28,882.56 is: 43,305.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,489.60 : 90,695.52 = 28,882.56 : x
  2. Step 2: Convert to fraction form
    60,489.60/90,695.52 = 28,882.56/x
  3. Step 3: Cross multiply
    60,489.60x = 90,695.52 × 28,882.56
  4. Step 4: Simplify right side
    60,489.60x = 2,619,518,798.13
  5. Step 5: Solve for x
    x = 2,619,518,798.13/60,489.60
  6. Step 6: Final answer
    x = 43,305.28

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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.