Home / 87,913.59-131,891.13-28,749.03

Finding the Fourth Proportional to 87,913.59, 131,891.13 and 28,749.03

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Solution

The fourth proportional to 87,913.59, 131,891.13 and 28,749.03 is: 43,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.59 : 131,891.13 = 28,749.03 : x
  2. Step 2: Convert to fraction form
    87,913.59/131,891.13 = 28,749.03/x
  3. Step 3: Cross multiply
    87,913.59x = 131,891.13 × 28,749.03
  4. Step 4: Simplify right side
    87,913.59x = 3,791,742,053.10
  5. Step 5: Solve for x
    x = 3,791,742,053.10/87,913.59
  6. Step 6: Final answer
    x = 43,130.33

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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.