Home / 66,867.62-92,280.33-38,189.78

Finding the Fourth Proportional to 66,867.62, 92,280.33 and 38,189.78

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Solution

The fourth proportional to 66,867.62, 92,280.33 and 38,189.78 is: 52,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,867.62 : 92,280.33 = 38,189.78 : x
  2. Step 2: Convert to fraction form
    66,867.62/92,280.33 = 38,189.78/x
  3. Step 3: Cross multiply
    66,867.62x = 92,280.33 × 38,189.78
  4. Step 4: Simplify right side
    66,867.62x = 3,524,165,501.03
  5. Step 5: Solve for x
    x = 3,524,165,501.03/66,867.62
  6. Step 6: Final answer
    x = 52,703.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.