Home / 76,101.12-114,089.76-31,760.88

Finding the Fourth Proportional to 76,101.12, 114,089.76 and 31,760.88

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Solution

The fourth proportional to 76,101.12, 114,089.76 and 31,760.88 is: 47,615.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,101.12 : 114,089.76 = 31,760.88 : x
  2. Step 2: Convert to fraction form
    76,101.12/114,089.76 = 31,760.88/x
  3. Step 3: Cross multiply
    76,101.12x = 114,089.76 × 31,760.88
  4. Step 4: Simplify right side
    76,101.12x = 3,623,591,176.59
  5. Step 5: Solve for x
    x = 3,623,591,176.59/76,101.12
  6. Step 6: Final answer
    x = 47,615.48

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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.