Home / 87,109.27-130,488.93-73,724.83

Finding the Fourth Proportional to 87,109.27, 130,488.93 and 73,724.83

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Solution

The fourth proportional to 87,109.27, 130,488.93 and 73,724.83 is: 110,439.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,109.27 : 130,488.93 = 73,724.83 : x
  2. Step 2: Convert to fraction form
    87,109.27/130,488.93 = 73,724.83/x
  3. Step 3: Cross multiply
    87,109.27x = 130,488.93 × 73,724.83
  4. Step 4: Simplify right side
    87,109.27x = 9,620,274,181.13
  5. Step 5: Solve for x
    x = 9,620,274,181.13/87,109.27
  6. Step 6: Final answer
    x = 110,439.16

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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.