Home / 76,902.32-115,353.48-30,177.20

Finding the Fourth Proportional to 76,902.32, 115,353.48 and 30,177.20

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Solution

The fourth proportional to 76,902.32, 115,353.48 and 30,177.20 is: 45,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,902.32 : 115,353.48 = 30,177.20 : x
  2. Step 2: Convert to fraction form
    76,902.32/115,353.48 = 30,177.20/x
  3. Step 3: Cross multiply
    76,902.32x = 115,353.48 × 30,177.20
  4. Step 4: Simplify right side
    76,902.32x = 3,481,045,036.66
  5. Step 5: Solve for x
    x = 3,481,045,036.66/76,902.32
  6. Step 6: Final answer
    x = 45,265.80

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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.