Home / 71,318.20-106,977.30-52,655.80

Finding the Fourth Proportional to 71,318.20, 106,977.30 and 52,655.80

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Solution

The fourth proportional to 71,318.20, 106,977.30 and 52,655.80 is: 78,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.20 : 106,977.30 = 52,655.80 : x
  2. Step 2: Convert to fraction form
    71,318.20/106,977.30 = 52,655.80/x
  3. Step 3: Cross multiply
    71,318.20x = 106,977.30 × 52,655.80
  4. Step 4: Simplify right side
    71,318.20x = 5,632,975,313.34
  5. Step 5: Solve for x
    x = 5,632,975,313.34/71,318.20
  6. Step 6: Final answer
    x = 78,983.70

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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.