Home / 87,615.63-131,347.64-74,375.13

Finding the Fourth Proportional to 87,615.63, 131,347.64 and 74,375.13

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Solution

The fourth proportional to 87,615.63, 131,347.64 and 74,375.13 is: 111,498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.63 : 131,347.64 = 74,375.13 : x
  2. Step 2: Convert to fraction form
    87,615.63/131,347.64 = 74,375.13/x
  3. Step 3: Cross multiply
    87,615.63x = 131,347.64 × 74,375.13
  4. Step 4: Simplify right side
    87,615.63x = 9,768,997,428.32
  5. Step 5: Solve for x
    x = 9,768,997,428.32/87,615.63
  6. Step 6: Final answer
    x = 111,498.34

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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.