Home / 81,085.62-111,898.11-45,275.61

Finding the Fourth Proportional to 81,085.62, 111,898.11 and 45,275.61

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Solution

The fourth proportional to 81,085.62, 111,898.11 and 45,275.61 is: 62,480.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,085.62 : 111,898.11 = 45,275.61 : x
  2. Step 2: Convert to fraction form
    81,085.62/111,898.11 = 45,275.61/x
  3. Step 3: Cross multiply
    81,085.62x = 111,898.11 × 45,275.61
  4. Step 4: Simplify right side
    81,085.62x = 5,066,255,188.10
  5. Step 5: Solve for x
    x = 5,066,255,188.10/81,085.62
  6. Step 6: Final answer
    x = 62,480.32

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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.