Home / 87,965.61-121,389.59-52,134.35

Finding the Fourth Proportional to 87,965.61, 121,389.59 and 52,134.35

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Solution

The fourth proportional to 87,965.61, 121,389.59 and 52,134.35 is: 71,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,965.61 : 121,389.59 = 52,134.35 : x
  2. Step 2: Convert to fraction form
    87,965.61/121,389.59 = 52,134.35/x
  3. Step 3: Cross multiply
    87,965.61x = 121,389.59 × 52,134.35
  4. Step 4: Simplify right side
    87,965.61x = 6,328,566,503.80
  5. Step 5: Solve for x
    x = 6,328,566,503.80/87,965.61
  6. Step 6: Final answer
    x = 71,943.65

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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.