Home / 71,864.72-99,176.38-40,033.64

Finding the Fourth Proportional to 71,864.72, 99,176.38 and 40,033.64

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Solution

The fourth proportional to 71,864.72, 99,176.38 and 40,033.64 is: 55,248.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,864.72 : 99,176.38 = 40,033.64 : x
  2. Step 2: Convert to fraction form
    71,864.72/99,176.38 = 40,033.64/x
  3. Step 3: Cross multiply
    71,864.72x = 99,176.38 × 40,033.64
  4. Step 4: Simplify right side
    71,864.72x = 3,970,391,493.42
  5. Step 5: Solve for x
    x = 3,970,391,493.42/71,864.72
  6. Step 6: Final answer
    x = 55,248.13

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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.