Home / 87,506.10-131,417.55-76,619.70

Finding the Fourth Proportional to 87,506.10, 131,417.55 and 76,619.70

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Solution

The fourth proportional to 87,506.10, 131,417.55 and 76,619.70 is: 115,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.10 : 131,417.55 = 76,619.70 : x
  2. Step 2: Convert to fraction form
    87,506.10/131,417.55 = 76,619.70/x
  3. Step 3: Cross multiply
    87,506.10x = 131,417.55 × 76,619.70
  4. Step 4: Simplify right side
    87,506.10x = 10,069,173,255.74
  5. Step 5: Solve for x
    x = 10,069,173,255.74/87,506.10
  6. Step 6: Final answer
    x = 115,068.24

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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.