Home / 90,844.71-125,258.45-62,178.18

Finding the Fourth Proportional to 90,844.71, 125,258.45 and 62,178.18

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Solution

The fourth proportional to 90,844.71, 125,258.45 and 62,178.18 is: 85,732.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,844.71 : 125,258.45 = 62,178.18 : x
  2. Step 2: Convert to fraction form
    90,844.71/125,258.45 = 62,178.18/x
  3. Step 3: Cross multiply
    90,844.71x = 125,258.45 × 62,178.18
  4. Step 4: Simplify right side
    90,844.71x = 7,788,342,139.73
  5. Step 5: Solve for x
    x = 7,788,342,139.73/90,844.71
  6. Step 6: Final answer
    x = 85,732.48

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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.