Home / 75,076.20-112,614.30-73,909.80

Finding the Fourth Proportional to 75,076.20, 112,614.30 and 73,909.80

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Solution

The fourth proportional to 75,076.20, 112,614.30 and 73,909.80 is: 110,864.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,076.20 : 112,614.30 = 73,909.80 : x
  2. Step 2: Convert to fraction form
    75,076.20/112,614.30 = 73,909.80/x
  3. Step 3: Cross multiply
    75,076.20x = 112,614.30 × 73,909.80
  4. Step 4: Simplify right side
    75,076.20x = 8,323,300,390.14
  5. Step 5: Solve for x
    x = 8,323,300,390.14/75,076.20
  6. Step 6: Final answer
    x = 110,864.70

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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.