Home / 81,160.23-112,001.67-45,351.75

Finding the Fourth Proportional to 81,160.23, 112,001.67 and 45,351.75

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Solution

The fourth proportional to 81,160.23, 112,001.67 and 45,351.75 is: 62,585.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,160.23 : 112,001.67 = 45,351.75 : x
  2. Step 2: Convert to fraction form
    81,160.23/112,001.67 = 45,351.75/x
  3. Step 3: Cross multiply
    81,160.23x = 112,001.67 × 45,351.75
  4. Step 4: Simplify right side
    81,160.23x = 5,079,471,737.42
  5. Step 5: Solve for x
    x = 5,079,471,737.42/81,160.23
  6. Step 6: Final answer
    x = 62,585.72

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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.