Home / 87,818.51-131,444.92-57,857.49

Finding the Fourth Proportional to 87,818.51, 131,444.92 and 57,857.49

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Solution

The fourth proportional to 87,818.51, 131,444.92 and 57,857.49 is: 86,599.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,818.51 : 131,444.92 = 57,857.49 : x
  2. Step 2: Convert to fraction form
    87,818.51/131,444.92 = 57,857.49/x
  3. Step 3: Cross multiply
    87,818.51x = 131,444.92 × 57,857.49
  4. Step 4: Simplify right side
    87,818.51x = 7,605,073,144.45
  5. Step 5: Solve for x
    x = 7,605,073,144.45/87,818.51
  6. Step 6: Final answer
    x = 86,599.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.