Home / 87,878.94-121,273.38-47,592.78

Finding the Fourth Proportional to 87,878.94, 121,273.38 and 47,592.78

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Solution

The fourth proportional to 87,878.94, 121,273.38 and 47,592.78 is: 65,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,878.94 : 121,273.38 = 47,592.78 : x
  2. Step 2: Convert to fraction form
    87,878.94/121,273.38 = 47,592.78/x
  3. Step 3: Cross multiply
    87,878.94x = 121,273.38 × 47,592.78
  4. Step 4: Simplify right side
    87,878.94x = 5,771,737,294.20
  5. Step 5: Solve for x
    x = 5,771,737,294.20/87,878.94
  6. Step 6: Final answer
    x = 65,678.28

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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.