Home / 86,387.96-129,619.38-42,053.24

Finding the Fourth Proportional to 86,387.96, 129,619.38 and 42,053.24

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Solution

The fourth proportional to 86,387.96, 129,619.38 and 42,053.24 is: 63,098.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.96 : 129,619.38 = 42,053.24 : x
  2. Step 2: Convert to fraction form
    86,387.96/129,619.38 = 42,053.24/x
  3. Step 3: Cross multiply
    86,387.96x = 129,619.38 × 42,053.24
  4. Step 4: Simplify right side
    86,387.96x = 5,450,914,895.79
  5. Step 5: Solve for x
    x = 5,450,914,895.79/86,387.96
  6. Step 6: Final answer
    x = 63,098.09

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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.