Home / 67,561.07-101,356.10-20,179.90

Finding the Fourth Proportional to 67,561.07, 101,356.10 and 20,179.90

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Solution

The fourth proportional to 67,561.07, 101,356.10 and 20,179.90 is: 30,274.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,561.07 : 101,356.10 = 20,179.90 : x
  2. Step 2: Convert to fraction form
    67,561.07/101,356.10 = 20,179.90/x
  3. Step 3: Cross multiply
    67,561.07x = 101,356.10 × 20,179.90
  4. Step 4: Simplify right side
    67,561.07x = 2,045,355,962.39
  5. Step 5: Solve for x
    x = 2,045,355,962.39/67,561.07
  6. Step 6: Final answer
    x = 30,274.18

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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.