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Finding the Fourth Proportional to 77,959.20, 116,951.05 and 25,356.39

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Solution

The fourth proportional to 77,959.20, 116,951.05 and 25,356.39 is: 38,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,959.20 : 116,951.05 = 25,356.39 : x
  2. Step 2: Convert to fraction form
    77,959.20/116,951.05 = 25,356.39/x
  3. Step 3: Cross multiply
    77,959.20x = 116,951.05 × 25,356.39
  4. Step 4: Simplify right side
    77,959.20x = 2,965,456,434.71
  5. Step 5: Solve for x
    x = 2,965,456,434.71/77,959.20
  6. Step 6: Final answer
    x = 38,038.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.