Home / 87,937.46-121,335.81-52,111.70

Finding the Fourth Proportional to 87,937.46, 121,335.81 and 52,111.70

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Solution

The fourth proportional to 87,937.46, 121,335.81 and 52,111.70 is: 71,903.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,937.46 : 121,335.81 = 52,111.70 : x
  2. Step 2: Convert to fraction form
    87,937.46/121,335.81 = 52,111.70/x
  3. Step 3: Cross multiply
    87,937.46x = 121,335.81 × 52,111.70
  4. Step 4: Simplify right side
    87,937.46x = 6,323,015,329.98
  5. Step 5: Solve for x
    x = 6,323,015,329.98/87,937.46
  6. Step 6: Final answer
    x = 71,903.55

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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.