Home / 87,641.70-131,462.55-56,148.90

Finding the Fourth Proportional to 87,641.70, 131,462.55 and 56,148.90

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Solution

The fourth proportional to 87,641.70, 131,462.55 and 56,148.90 is: 84,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,641.70 : 131,462.55 = 56,148.90 : x
  2. Step 2: Convert to fraction form
    87,641.70/131,462.55 = 56,148.90/x
  3. Step 3: Cross multiply
    87,641.70x = 131,462.55 × 56,148.90
  4. Step 4: Simplify right side
    87,641.70x = 7,381,477,573.70
  5. Step 5: Solve for x
    x = 7,381,477,573.70/87,641.70
  6. Step 6: Final answer
    x = 84,223.35

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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.