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Finding the Fourth Proportional to 91,081.71, 125,692.88 and 50,244.92

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Solution

The fourth proportional to 91,081.71, 125,692.88 and 50,244.92 is: 69,338.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.71 : 125,692.88 = 50,244.92 : x
  2. Step 2: Convert to fraction form
    91,081.71/125,692.88 = 50,244.92/x
  3. Step 3: Cross multiply
    91,081.71x = 125,692.88 × 50,244.92
  4. Step 4: Simplify right side
    91,081.71x = 6,315,428,700.17
  5. Step 5: Solve for x
    x = 6,315,428,700.17/91,081.71
  6. Step 6: Final answer
    x = 69,338.06

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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.