Home / 90,701.28-125,286.72-62,357.76

Finding the Fourth Proportional to 90,701.28, 125,286.72 and 62,357.76

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Solution

The fourth proportional to 90,701.28, 125,286.72 and 62,357.76 is: 86,135.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.28 : 125,286.72 = 62,357.76 : x
  2. Step 2: Convert to fraction form
    90,701.28/125,286.72 = 62,357.76/x
  3. Step 3: Cross multiply
    90,701.28x = 125,286.72 × 62,357.76
  4. Step 4: Simplify right side
    90,701.28x = 7,812,599,216.95
  5. Step 5: Solve for x
    x = 7,812,599,216.95/90,701.28
  6. Step 6: Final answer
    x = 86,135.49

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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.