Home / 76,455.74-113,908.56-72,691.54

Finding the Fourth Proportional to 76,455.74, 113,908.56 and 72,691.54

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Solution

The fourth proportional to 76,455.74, 113,908.56 and 72,691.54 is: 108,300.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.74 : 113,908.56 = 72,691.54 : x
  2. Step 2: Convert to fraction form
    76,455.74/113,908.56 = 72,691.54/x
  3. Step 3: Cross multiply
    76,455.74x = 113,908.56 × 72,691.54
  4. Step 4: Simplify right side
    76,455.74x = 8,280,188,645.58
  5. Step 5: Solve for x
    x = 8,280,188,645.58/76,455.74
  6. Step 6: Final answer
    x = 108,300.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.