Home / 86,084.43-129,106.13-36,165.50

Finding the Fourth Proportional to 86,084.43, 129,106.13 and 36,165.50

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Solution

The fourth proportional to 86,084.43, 129,106.13 and 36,165.50 is: 54,239.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,084.43 : 129,106.13 = 36,165.50 : x
  2. Step 2: Convert to fraction form
    86,084.43/129,106.13 = 36,165.50/x
  3. Step 3: Cross multiply
    86,084.43x = 129,106.13 × 36,165.50
  4. Step 4: Simplify right side
    86,084.43x = 4,669,187,189.40
  5. Step 5: Solve for x
    x = 4,669,187,189.40/86,084.43
  6. Step 6: Final answer
    x = 54,239.62

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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.