Home / 86,875.31-130,067.22-55,206.87

Finding the Fourth Proportional to 86,875.31, 130,067.22 and 55,206.87

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Solution

The fourth proportional to 86,875.31, 130,067.22 and 55,206.87 is: 82,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,875.31 : 130,067.22 = 55,206.87 : x
  2. Step 2: Convert to fraction form
    86,875.31/130,067.22 = 55,206.87/x
  3. Step 3: Cross multiply
    86,875.31x = 130,067.22 × 55,206.87
  4. Step 4: Simplify right side
    86,875.31x = 7,180,604,105.80
  5. Step 5: Solve for x
    x = 7,180,604,105.80/86,875.31
  6. Step 6: Final answer
    x = 82,654.15

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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.