Home / 87,340.98-130,918.04-45,178.62

Finding the Fourth Proportional to 87,340.98, 130,918.04 and 45,178.62

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Solution

The fourth proportional to 87,340.98, 130,918.04 and 45,178.62 is: 67,719.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,340.98 : 130,918.04 = 45,178.62 : x
  2. Step 2: Convert to fraction form
    87,340.98/130,918.04 = 45,178.62/x
  3. Step 3: Cross multiply
    87,340.98x = 130,918.04 × 45,178.62
  4. Step 4: Simplify right side
    87,340.98x = 5,914,696,154.41
  5. Step 5: Solve for x
    x = 5,914,696,154.41/87,340.98
  6. Step 6: Final answer
    x = 67,719.60

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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.