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Finding the Fourth Proportional to 71,613.64, 107,310.06 and 38,338.12

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Solution

The fourth proportional to 71,613.64, 107,310.06 and 38,338.12 is: 57,448.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,613.64 : 107,310.06 = 38,338.12 : x
  2. Step 2: Convert to fraction form
    71,613.64/107,310.06 = 38,338.12/x
  3. Step 3: Cross multiply
    71,613.64x = 107,310.06 × 38,338.12
  4. Step 4: Simplify right side
    71,613.64x = 4,114,065,957.49
  5. Step 5: Solve for x
    x = 4,114,065,957.49/71,613.64
  6. Step 6: Final answer
    x = 57,448.08

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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.