Home / 87,842.65-121,223.82-47,557.27

Finding the Fourth Proportional to 87,842.65, 121,223.82 and 47,557.27

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Solution

The fourth proportional to 87,842.65, 121,223.82 and 47,557.27 is: 65,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,842.65 : 121,223.82 = 47,557.27 : x
  2. Step 2: Convert to fraction form
    87,842.65/121,223.82 = 47,557.27/x
  3. Step 3: Cross multiply
    87,842.65x = 121,223.82 × 47,557.27
  4. Step 4: Simplify right side
    87,842.65x = 5,765,073,938.17
  5. Step 5: Solve for x
    x = 5,765,073,938.17/87,842.65
  6. Step 6: Final answer
    x = 65,629.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.