Home / 86,345.76-129,279.48-44,134.95

Finding the Fourth Proportional to 86,345.76, 129,279.48 and 44,134.95

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Solution

The fourth proportional to 86,345.76, 129,279.48 and 44,134.95 is: 66,080.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,345.76 : 129,279.48 = 44,134.95 : x
  2. Step 2: Convert to fraction form
    86,345.76/129,279.48 = 44,134.95/x
  3. Step 3: Cross multiply
    86,345.76x = 129,279.48 × 44,134.95
  4. Step 4: Simplify right side
    86,345.76x = 5,705,743,385.83
  5. Step 5: Solve for x
    x = 5,705,743,385.83/86,345.76
  6. Step 6: Final answer
    x = 66,080.18

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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.