Home / 90,243.73-124,532.31-49,954.65

Finding the Fourth Proportional to 90,243.73, 124,532.31 and 49,954.65

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Solution

The fourth proportional to 90,243.73, 124,532.31 and 49,954.65 is: 68,935.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,243.73 : 124,532.31 = 49,954.65 : x
  2. Step 2: Convert to fraction form
    90,243.73/124,532.31 = 49,954.65/x
  3. Step 3: Cross multiply
    90,243.73x = 124,532.31 × 49,954.65
  4. Step 4: Simplify right side
    90,243.73x = 6,220,967,959.74
  5. Step 5: Solve for x
    x = 6,220,967,959.74/90,243.73
  6. Step 6: Final answer
    x = 68,935.18

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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.