Home / 87,935.40-121,387.14-62,818.92

Finding the Fourth Proportional to 87,935.40, 121,387.14 and 62,818.92

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Solution

The fourth proportional to 87,935.40, 121,387.14 and 62,818.92 is: 86,716.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935.40 : 121,387.14 = 62,818.92 : x
  2. Step 2: Convert to fraction form
    87,935.40/121,387.14 = 62,818.92/x
  3. Step 3: Cross multiply
    87,935.40x = 121,387.14 × 62,818.92
  4. Step 4: Simplify right side
    87,935.40x = 7,625,409,036.69
  5. Step 5: Solve for x
    x = 7,625,409,036.69/87,935.40
  6. Step 6: Final answer
    x = 86,716.03

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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.