Home / 81,045.80-121,578.40-24,878.54

Finding the Fourth Proportional to 81,045.80, 121,578.40 and 24,878.54

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Solution

The fourth proportional to 81,045.80, 121,578.40 and 24,878.54 is: 37,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,045.80 : 121,578.40 = 24,878.54 : x
  2. Step 2: Convert to fraction form
    81,045.80/121,578.40 = 24,878.54/x
  3. Step 3: Cross multiply
    81,045.80x = 121,578.40 × 24,878.54
  4. Step 4: Simplify right side
    81,045.80x = 3,024,693,087.54
  5. Step 5: Solve for x
    x = 3,024,693,087.54/81,045.80
  6. Step 6: Final answer
    x = 37,320.79

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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.