Home / 87,572.12-131,377.40-28,413.76

Finding the Fourth Proportional to 87,572.12, 131,377.40 and 28,413.76

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Solution

The fourth proportional to 87,572.12, 131,377.40 and 28,413.76 is: 42,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,572.12 : 131,377.40 = 28,413.76 : x
  2. Step 2: Convert to fraction form
    87,572.12/131,377.40 = 28,413.76/x
  3. Step 3: Cross multiply
    87,572.12x = 131,377.40 × 28,413.76
  4. Step 4: Simplify right side
    87,572.12x = 3,732,925,913.02
  5. Step 5: Solve for x
    x = 3,732,925,913.02/87,572.12
  6. Step 6: Final answer
    x = 42,626.88

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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.