Home / 87,545.75-131,320.44-28,381.32

Finding the Fourth Proportional to 87,545.75, 131,320.44 and 28,381.32

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Solution

The fourth proportional to 87,545.75, 131,320.44 and 28,381.32 is: 42,572.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,545.75 : 131,320.44 = 28,381.32 : x
  2. Step 2: Convert to fraction form
    87,545.75/131,320.44 = 28,381.32/x
  3. Step 3: Cross multiply
    87,545.75x = 131,320.44 × 28,381.32
  4. Step 4: Simplify right side
    87,545.75x = 3,727,047,430.18
  5. Step 5: Solve for x
    x = 3,727,047,430.18/87,545.75
  6. Step 6: Final answer
    x = 42,572.57

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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.