Home / 98,062.11-135,354.71-57,788.78

Finding the Fourth Proportional to 98,062.11, 135,354.71 and 57,788.78

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Solution

The fourth proportional to 98,062.11, 135,354.71 and 57,788.78 is: 79,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,062.11 : 135,354.71 = 57,788.78 : x
  2. Step 2: Convert to fraction form
    98,062.11/135,354.71 = 57,788.78/x
  3. Step 3: Cross multiply
    98,062.11x = 135,354.71 × 57,788.78
  4. Step 4: Simplify right side
    98,062.11x = 7,821,983,025.85
  5. Step 5: Solve for x
    x = 7,821,983,025.85/98,062.11
  6. Step 6: Final answer
    x = 79,765.60

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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.