Home / 66,765.24-92,141.28-38,480.04

Finding the Fourth Proportional to 66,765.24, 92,141.28 and 38,480.04

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Solution

The fourth proportional to 66,765.24, 92,141.28 and 38,480.04 is: 53,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,765.24 : 92,141.28 = 38,480.04 : x
  2. Step 2: Convert to fraction form
    66,765.24/92,141.28 = 38,480.04/x
  3. Step 3: Cross multiply
    66,765.24x = 92,141.28 × 38,480.04
  4. Step 4: Simplify right side
    66,765.24x = 3,545,600,140.05
  5. Step 5: Solve for x
    x = 3,545,600,140.05/66,765.24
  6. Step 6: Final answer
    x = 53,105.48

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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.