Home / 86,435.98-129,652.68-52,711.90

Finding the Fourth Proportional to 86,435.98, 129,652.68 and 52,711.90

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Solution

The fourth proportional to 86,435.98, 129,652.68 and 52,711.90 is: 79,067.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,435.98 : 129,652.68 = 52,711.90 : x
  2. Step 2: Convert to fraction form
    86,435.98/129,652.68 = 52,711.90/x
  3. Step 3: Cross multiply
    86,435.98x = 129,652.68 × 52,711.90
  4. Step 4: Simplify right side
    86,435.98x = 6,834,239,102.89
  5. Step 5: Solve for x
    x = 6,834,239,102.89/86,435.98
  6. Step 6: Final answer
    x = 79,067.06

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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.