Home / 86,398.85-129,620.15-36,453.24

Finding the Fourth Proportional to 86,398.85, 129,620.15 and 36,453.24

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Solution

The fourth proportional to 86,398.85, 129,620.15 and 36,453.24 is: 54,689.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,398.85 : 129,620.15 = 36,453.24 : x
  2. Step 2: Convert to fraction form
    86,398.85/129,620.15 = 36,453.24/x
  3. Step 3: Cross multiply
    86,398.85x = 129,620.15 × 36,453.24
  4. Step 4: Simplify right side
    86,398.85x = 4,725,074,391.22
  5. Step 5: Solve for x
    x = 4,725,074,391.22/86,398.85
  6. Step 6: Final answer
    x = 54,689.09

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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.