Home / 90,811.91-125,317.28-49,972.22

Finding the Fourth Proportional to 90,811.91, 125,317.28 and 49,972.22

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Solution

The fourth proportional to 90,811.91, 125,317.28 and 49,972.22 is: 68,959.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,811.91 : 125,317.28 = 49,972.22 : x
  2. Step 2: Convert to fraction form
    90,811.91/125,317.28 = 49,972.22/x
  3. Step 3: Cross multiply
    90,811.91x = 125,317.28 × 49,972.22
  4. Step 4: Simplify right side
    90,811.91x = 6,262,382,436.10
  5. Step 5: Solve for x
    x = 6,262,382,436.10/90,811.91
  6. Step 6: Final answer
    x = 68,959.92

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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.