Home / 52,638.68-72,641.11-31,136.15

Finding the Fourth Proportional to 52,638.68, 72,641.11 and 31,136.15

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Solution

The fourth proportional to 52,638.68, 72,641.11 and 31,136.15 is: 42,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,638.68 : 72,641.11 = 31,136.15 : x
  2. Step 2: Convert to fraction form
    52,638.68/72,641.11 = 31,136.15/x
  3. Step 3: Cross multiply
    52,638.68x = 72,641.11 × 31,136.15
  4. Step 4: Simplify right side
    52,638.68x = 2,261,764,497.13
  5. Step 5: Solve for x
    x = 2,261,764,497.13/52,638.68
  6. Step 6: Final answer
    x = 42,967.73

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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.