Home / 90,625.66-125,065.40-49,790.32

Finding the Fourth Proportional to 90,625.66, 125,065.40 and 49,790.32

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Solution

The fourth proportional to 90,625.66, 125,065.40 and 49,790.32 is: 68,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,625.66 : 125,065.40 = 49,790.32 : x
  2. Step 2: Convert to fraction form
    90,625.66/125,065.40 = 49,790.32/x
  3. Step 3: Cross multiply
    90,625.66x = 125,065.40 × 49,790.32
  4. Step 4: Simplify right side
    90,625.66x = 6,227,046,286.93
  5. Step 5: Solve for x
    x = 6,227,046,286.93/90,625.66
  6. Step 6: Final answer
    x = 68,711.73

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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.