Home / 48,587.61-72,891.50-20,507.90

Finding the Fourth Proportional to 48,587.61, 72,891.50 and 20,507.90

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Solution

The fourth proportional to 48,587.61, 72,891.50 and 20,507.90 is: 30,766.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,587.61 : 72,891.50 = 20,507.90 : x
  2. Step 2: Convert to fraction form
    48,587.61/72,891.50 = 20,507.90/x
  3. Step 3: Cross multiply
    48,587.61x = 72,891.50 × 20,507.90
  4. Step 4: Simplify right side
    48,587.61x = 1,494,851,125.85
  5. Step 5: Solve for x
    x = 1,494,851,125.85/48,587.61
  6. Step 6: Final answer
    x = 30,766.10

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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.