Home / 61,087.72-91,627.22-18,966.78

Finding the Fourth Proportional to 61,087.72, 91,627.22 and 18,966.78

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Solution

The fourth proportional to 61,087.72, 91,627.22 and 18,966.78 is: 28,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,087.72 : 91,627.22 = 18,966.78 : x
  2. Step 2: Convert to fraction form
    61,087.72/91,627.22 = 18,966.78/x
  3. Step 3: Cross multiply
    61,087.72x = 91,627.22 × 18,966.78
  4. Step 4: Simplify right side
    61,087.72x = 1,737,873,323.75
  5. Step 5: Solve for x
    x = 1,737,873,323.75/61,087.72
  6. Step 6: Final answer
    x = 28,448.82

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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.