Home / 87,966.92-121,391.39-52,135.66

Finding the Fourth Proportional to 87,966.92, 121,391.39 and 52,135.66

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Solution

The fourth proportional to 87,966.92, 121,391.39 and 52,135.66 is: 71,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,966.92 : 121,391.39 = 52,135.66 : x
  2. Step 2: Convert to fraction form
    87,966.92/121,391.39 = 52,135.66/x
  3. Step 3: Cross multiply
    87,966.92x = 121,391.39 × 52,135.66
  4. Step 4: Simplify right side
    87,966.92x = 6,328,820,176.63
  5. Step 5: Solve for x
    x = 6,328,820,176.63/87,966.92
  6. Step 6: Final answer
    x = 71,945.46

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1.5x scale

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.