Home / 86,380.06-129,514.62-36,446.50

Finding the Fourth Proportional to 86,380.06, 129,514.62 and 36,446.50

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Solution

The fourth proportional to 86,380.06, 129,514.62 and 36,446.50 is: 54,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,380.06 : 129,514.62 = 36,446.50 : x
  2. Step 2: Convert to fraction form
    86,380.06/129,514.62 = 36,446.50/x
  3. Step 3: Cross multiply
    86,380.06x = 129,514.62 × 36,446.50
  4. Step 4: Simplify right side
    86,380.06x = 4,720,354,597.83
  5. Step 5: Solve for x
    x = 4,720,354,597.83/86,380.06
  6. Step 6: Final answer
    x = 54,646.35

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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.