Home / 67,207.38-100,803.87-20,460.66

Finding the Fourth Proportional to 67,207.38, 100,803.87 and 20,460.66

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Solution

The fourth proportional to 67,207.38, 100,803.87 and 20,460.66 is: 30,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,207.38 : 100,803.87 = 20,460.66 : x
  2. Step 2: Convert to fraction form
    67,207.38/100,803.87 = 20,460.66/x
  3. Step 3: Cross multiply
    67,207.38x = 100,803.87 × 20,460.66
  4. Step 4: Simplify right side
    67,207.38x = 2,062,513,710.75
  5. Step 5: Solve for x
    x = 2,062,513,710.75/67,207.38
  6. Step 6: Final answer
    x = 30,688.80

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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.