Home / 81,382.38-112,314.75-45,571.74

Finding the Fourth Proportional to 81,382.38, 112,314.75 and 45,571.74

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Solution

The fourth proportional to 81,382.38, 112,314.75 and 45,571.74 is: 62,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,382.38 : 112,314.75 = 45,571.74 : x
  2. Step 2: Convert to fraction form
    81,382.38/112,314.75 = 45,571.74/x
  3. Step 3: Cross multiply
    81,382.38x = 112,314.75 × 45,571.74
  4. Step 4: Simplify right side
    81,382.38x = 5,118,378,585.17
  5. Step 5: Solve for x
    x = 5,118,378,585.17/81,382.38
  6. Step 6: Final answer
    x = 62,892.96

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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.