Home / 87,077.05-130,615.56-69,657.59

Finding the Fourth Proportional to 87,077.05, 130,615.56 and 69,657.59

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Solution

The fourth proportional to 87,077.05, 130,615.56 and 69,657.59 is: 104,486.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,077.05 : 130,615.56 = 69,657.59 : x
  2. Step 2: Convert to fraction form
    87,077.05/130,615.56 = 69,657.59/x
  3. Step 3: Cross multiply
    87,077.05x = 130,615.56 × 69,657.59
  4. Step 4: Simplify right side
    87,077.05x = 9,098,365,452.64
  5. Step 5: Solve for x
    x = 9,098,365,452.64/87,077.05
  6. Step 6: Final answer
    x = 104,486.38

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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.