Home / 67,007.28-100,379.52-38,868.20

Finding the Fourth Proportional to 67,007.28, 100,379.52 and 38,868.20

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Solution

The fourth proportional to 67,007.28, 100,379.52 and 38,868.20 is: 58,226.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,007.28 : 100,379.52 = 38,868.20 : x
  2. Step 2: Convert to fraction form
    67,007.28/100,379.52 = 38,868.20/x
  3. Step 3: Cross multiply
    67,007.28x = 100,379.52 × 38,868.20
  4. Step 4: Simplify right side
    67,007.28x = 3,901,571,259.26
  5. Step 5: Solve for x
    x = 3,901,571,259.26/67,007.28
  6. Step 6: Final answer
    x = 58,226.08

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1.5x scale

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.