Home / 87,913.34-121,320.24-47,628.11

Finding the Fourth Proportional to 87,913.34, 121,320.24 and 47,628.11

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Solution

The fourth proportional to 87,913.34, 121,320.24 and 47,628.11 is: 65,726.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,913.34 : 121,320.24 = 47,628.11 : x
  2. Step 2: Convert to fraction form
    87,913.34/121,320.24 = 47,628.11/x
  3. Step 3: Cross multiply
    87,913.34x = 121,320.24 × 47,628.11
  4. Step 4: Simplify right side
    87,913.34x = 5,778,253,735.95
  5. Step 5: Solve for x
    x = 5,778,253,735.95/87,913.34
  6. Step 6: Final answer
    x = 65,726.70

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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.