Home / 86,405.04-129,490.92-44,881.20

Finding the Fourth Proportional to 86,405.04, 129,490.92 and 44,881.20

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Solution

The fourth proportional to 86,405.04, 129,490.92 and 44,881.20 is: 67,261.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,405.04 : 129,490.92 = 44,881.20 : x
  2. Step 2: Convert to fraction form
    86,405.04/129,490.92 = 44,881.20/x
  3. Step 3: Cross multiply
    86,405.04x = 129,490.92 × 44,881.20
  4. Step 4: Simplify right side
    86,405.04x = 5,811,707,878.70
  5. Step 5: Solve for x
    x = 5,811,707,878.70/86,405.04
  6. Step 6: Final answer
    x = 67,261.21

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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.