Home / 86,780.19-130,173.15-29,853.53

Finding the Fourth Proportional to 86,780.19, 130,173.15 and 29,853.53

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Solution

The fourth proportional to 86,780.19, 130,173.15 and 29,853.53 is: 44,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,780.19 : 130,173.15 = 29,853.53 : x
  2. Step 2: Convert to fraction form
    86,780.19/130,173.15 = 29,853.53/x
  3. Step 3: Cross multiply
    86,780.19x = 130,173.15 × 29,853.53
  4. Step 4: Simplify right side
    86,780.19x = 3,886,127,387.85
  5. Step 5: Solve for x
    x = 3,886,127,387.85/86,780.19
  6. Step 6: Final answer
    x = 44,781.27

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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.