Home / 77,972.17-107,618.27-49,273.57

Finding the Fourth Proportional to 77,972.17, 107,618.27 and 49,273.57

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Solution

The fourth proportional to 77,972.17, 107,618.27 and 49,273.57 is: 68,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972.17 : 107,618.27 = 49,273.57 : x
  2. Step 2: Convert to fraction form
    77,972.17/107,618.27 = 49,273.57/x
  3. Step 3: Cross multiply
    77,972.17x = 107,618.27 × 49,273.57
  4. Step 4: Simplify right side
    77,972.17x = 5,302,735,920.09
  5. Step 5: Solve for x
    x = 5,302,735,920.09/77,972.17
  6. Step 6: Final answer
    x = 68,008.06

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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.