Home / 87,275.31-130,791.81-39,774.33

Finding the Fourth Proportional to 87,275.31, 130,791.81 and 39,774.33

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Solution

The fourth proportional to 87,275.31, 130,791.81 and 39,774.33 is: 59,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,275.31 : 130,791.81 = 39,774.33 : x
  2. Step 2: Convert to fraction form
    87,275.31/130,791.81 = 39,774.33/x
  3. Step 3: Cross multiply
    87,275.31x = 130,791.81 × 39,774.33
  4. Step 4: Simplify right side
    87,275.31x = 5,202,156,612.24
  5. Step 5: Solve for x
    x = 5,202,156,612.24/87,275.31
  6. Step 6: Final answer
    x = 59,606.28

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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.