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Finding the Fourth Proportional to 78,963.36, 118,446 and 26,373

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Solution

The fourth proportional to 78,963.36, 118,446 and 26,373 is: 39,559.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,963.36 : 118,446 = 26,373 : x
  2. Step 2: Convert to fraction form
    78,963.36/118,446 = 26,373/x
  3. Step 3: Cross multiply
    78,963.36x = 118,446 × 26,373
  4. Step 4: Simplify right side
    78,963.36x = 3,123,776,358
  5. Step 5: Solve for x
    x = 3,123,776,358/78,963.36
  6. Step 6: Final answer
    x = 39,559.82

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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.