Home / 90,040.88-124,258.83-49,757.15

Finding the Fourth Proportional to 90,040.88, 124,258.83 and 49,757.15

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Solution

The fourth proportional to 90,040.88, 124,258.83 and 49,757.15 is: 68,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,040.88 : 124,258.83 = 49,757.15 : x
  2. Step 2: Convert to fraction form
    90,040.88/124,258.83 = 49,757.15/x
  3. Step 3: Cross multiply
    90,040.88x = 124,258.83 × 49,757.15
  4. Step 4: Simplify right side
    90,040.88x = 6,182,765,367.19
  5. Step 5: Solve for x
    x = 6,182,765,367.19/90,040.88
  6. Step 6: Final answer
    x = 68,666.20

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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.