Home / 81,474.03-112,432.20-45,175.29

Finding the Fourth Proportional to 81,474.03, 112,432.20 and 45,175.29

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Solution

The fourth proportional to 81,474.03, 112,432.20 and 45,175.29 is: 62,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,474.03 : 112,432.20 = 45,175.29 : x
  2. Step 2: Convert to fraction form
    81,474.03/112,432.20 = 45,175.29/x
  3. Step 3: Cross multiply
    81,474.03x = 112,432.20 × 45,175.29
  4. Step 4: Simplify right side
    81,474.03x = 5,079,157,240.34
  5. Step 5: Solve for x
    x = 5,079,157,240.34/81,474.03
  6. Step 6: Final answer
    x = 62,340.81

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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.