Home / 87,929.60-121,342.66-47,644.45

Finding the Fourth Proportional to 87,929.60, 121,342.66 and 47,644.45

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Solution

The fourth proportional to 87,929.60, 121,342.66 and 47,644.45 is: 65,749.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,929.60 : 121,342.66 = 47,644.45 : x
  2. Step 2: Convert to fraction form
    87,929.60/121,342.66 = 47,644.45/x
  3. Step 3: Cross multiply
    87,929.60x = 121,342.66 × 47,644.45
  4. Step 4: Simplify right side
    87,929.60x = 5,781,304,557.32
  5. Step 5: Solve for x
    x = 5,781,304,557.32/87,929.60
  6. Step 6: Final answer
    x = 65,749.24

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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.