Home / 81,255.96-112,138.56-45,452.16

Finding the Fourth Proportional to 81,255.96, 112,138.56 and 45,452.16

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Solution

The fourth proportional to 81,255.96, 112,138.56 and 45,452.16 is: 62,726.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,255.96 : 112,138.56 = 45,452.16 : x
  2. Step 2: Convert to fraction form
    81,255.96/112,138.56 = 45,452.16/x
  3. Step 3: Cross multiply
    81,255.96x = 112,138.56 × 45,452.16
  4. Step 4: Simplify right side
    81,255.96x = 5,096,939,771.29
  5. Step 5: Solve for x
    x = 5,096,939,771.29/81,255.96
  6. Step 6: Final answer
    x = 62,726.97

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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.