Home / 76,961.10-115,441.65-75,648.90

Finding the Fourth Proportional to 76,961.10, 115,441.65 and 75,648.90

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Solution

The fourth proportional to 76,961.10, 115,441.65 and 75,648.90 is: 113,473.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.10 : 115,441.65 = 75,648.90 : x
  2. Step 2: Convert to fraction form
    76,961.10/115,441.65 = 75,648.90/x
  3. Step 3: Cross multiply
    76,961.10x = 115,441.65 × 75,648.90
  4. Step 4: Simplify right side
    76,961.10x = 8,733,033,836.69
  5. Step 5: Solve for x
    x = 8,733,033,836.69/76,961.10
  6. Step 6: Final answer
    x = 113,473.35

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1.5x scale

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.