Home / 81,275.27-112,169.18-45,474.35

Finding the Fourth Proportional to 81,275.27, 112,169.18 and 45,474.35

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Solution

The fourth proportional to 81,275.27, 112,169.18 and 45,474.35 is: 62,759.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,275.27 : 112,169.18 = 45,474.35 : x
  2. Step 2: Convert to fraction form
    81,275.27/112,169.18 = 45,474.35/x
  3. Step 3: Cross multiply
    81,275.27x = 112,169.18 × 45,474.35
  4. Step 4: Simplify right side
    81,275.27x = 5,100,820,550.53
  5. Step 5: Solve for x
    x = 5,100,820,550.53/81,275.27
  6. Step 6: Final answer
    x = 62,759.81

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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.