Home / 90,227.30-124,509.75-49,938.66

Finding the Fourth Proportional to 90,227.30, 124,509.75 and 49,938.66

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Solution

The fourth proportional to 90,227.30, 124,509.75 and 49,938.66 is: 68,913.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,227.30 : 124,509.75 = 49,938.66 : x
  2. Step 2: Convert to fraction form
    90,227.30/124,509.75 = 49,938.66/x
  3. Step 3: Cross multiply
    90,227.30x = 124,509.75 × 49,938.66
  4. Step 4: Simplify right side
    90,227.30x = 6,217,850,071.94
  5. Step 5: Solve for x
    x = 6,217,850,071.94/90,227.30
  6. Step 6: Final answer
    x = 68,913.18

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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.