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Finding the Fourth Proportional to 40,487.53, 60,724.39 and 10,898.77

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Solution

The fourth proportional to 40,487.53, 60,724.39 and 10,898.77 is: 16,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,487.53 : 60,724.39 = 10,898.77 : x
  2. Step 2: Convert to fraction form
    40,487.53/60,724.39 = 10,898.77/x
  3. Step 3: Cross multiply
    40,487.53x = 60,724.39 × 10,898.77
  4. Step 4: Simplify right side
    40,487.53x = 661,821,160.00
  5. Step 5: Solve for x
    x = 661,821,160.00/40,487.53
  6. Step 6: Final answer
    x = 16,346.30

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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.