Home / 66,791.20-92,149.48-38,496.28

Finding the Fourth Proportional to 66,791.20, 92,149.48 and 38,496.28

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Solution

The fourth proportional to 66,791.20, 92,149.48 and 38,496.28 is: 53,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,791.20 : 92,149.48 = 38,496.28 : x
  2. Step 2: Convert to fraction form
    66,791.20/92,149.48 = 38,496.28/x
  3. Step 3: Cross multiply
    66,791.20x = 92,149.48 × 38,496.28
  4. Step 4: Simplify right side
    66,791.20x = 3,547,412,183.93
  5. Step 5: Solve for x
    x = 3,547,412,183.93/66,791.20
  6. Step 6: Final answer
    x = 53,111.97

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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.