Home / 86,387.40-129,598.72-48,964.19

Finding the Fourth Proportional to 86,387.40, 129,598.72 and 48,964.19

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Solution

The fourth proportional to 86,387.40, 129,598.72 and 48,964.19 is: 73,456.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.40 : 129,598.72 = 48,964.19 : x
  2. Step 2: Convert to fraction form
    86,387.40/129,598.72 = 48,964.19/x
  3. Step 3: Cross multiply
    86,387.40x = 129,598.72 × 48,964.19
  4. Step 4: Simplify right side
    86,387.40x = 6,345,695,579.43
  5. Step 5: Solve for x
    x = 6,345,695,579.43/86,387.40
  6. Step 6: Final answer
    x = 73,456.26

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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.