Home / 76,911.30-115,332.21-32,515.20

Finding the Fourth Proportional to 76,911.30, 115,332.21 and 32,515.20

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Solution

The fourth proportional to 76,911.30, 115,332.21 and 32,515.20 is: 48,758.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,911.30 : 115,332.21 = 32,515.20 : x
  2. Step 2: Convert to fraction form
    76,911.30/115,332.21 = 32,515.20/x
  3. Step 3: Cross multiply
    76,911.30x = 115,332.21 × 32,515.20
  4. Step 4: Simplify right side
    76,911.30x = 3,750,049,874.59
  5. Step 5: Solve for x
    x = 3,750,049,874.59/76,911.30
  6. Step 6: Final answer
    x = 48,758.11

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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.