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Finding the Fourth Proportional to 71,753.80, 99,056.12 and 55,585.12

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Solution

The fourth proportional to 71,753.80, 99,056.12 and 55,585.12 is: 76,735.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.80 : 99,056.12 = 55,585.12 : x
  2. Step 2: Convert to fraction form
    71,753.80/99,056.12 = 55,585.12/x
  3. Step 3: Cross multiply
    71,753.80x = 99,056.12 × 55,585.12
  4. Step 4: Simplify right side
    71,753.80x = 5,506,046,316.93
  5. Step 5: Solve for x
    x = 5,506,046,316.93/71,753.80
  6. Step 6: Final answer
    x = 76,735.26

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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.