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Finding the Fourth Proportional to 74,613.40, 112,049.70 and 39,621.40

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Solution

The fourth proportional to 74,613.40, 112,049.70 and 39,621.40 is: 59,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,613.40 : 112,049.70 = 39,621.40 : x
  2. Step 2: Convert to fraction form
    74,613.40/112,049.70 = 39,621.40/x
  3. Step 3: Cross multiply
    74,613.40x = 112,049.70 × 39,621.40
  4. Step 4: Simplify right side
    74,613.40x = 4,439,565,983.58
  5. Step 5: Solve for x
    x = 4,439,565,983.58/74,613.40
  6. Step 6: Final answer
    x = 59,500.92

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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.