Home / 86,742.90-119,726.10-54,496.80

Finding the Fourth Proportional to 86,742.90, 119,726.10 and 54,496.80

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Solution

The fourth proportional to 86,742.90, 119,726.10 and 54,496.80 is: 75,218.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,742.90 : 119,726.10 = 54,496.80 : x
  2. Step 2: Convert to fraction form
    86,742.90/119,726.10 = 54,496.80/x
  3. Step 3: Cross multiply
    86,742.90x = 119,726.10 × 54,496.80
  4. Step 4: Simplify right side
    86,742.90x = 6,524,689,326.48
  5. Step 5: Solve for x
    x = 6,524,689,326.48/86,742.90
  6. Step 6: Final answer
    x = 75,218.71

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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.