Home / 79,655.20-119,497.20-40,112.80

Finding the Fourth Proportional to 79,655.20, 119,497.20 and 40,112.80

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Solution

The fourth proportional to 79,655.20, 119,497.20 and 40,112.80 is: 60,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.20 : 119,497.20 = 40,112.80 : x
  2. Step 2: Convert to fraction form
    79,655.20/119,497.20 = 40,112.80/x
  3. Step 3: Cross multiply
    79,655.20x = 119,497.20 × 40,112.80
  4. Step 4: Simplify right side
    79,655.20x = 4,793,367,284.16
  5. Step 5: Solve for x
    x = 4,793,367,284.16/79,655.20
  6. Step 6: Final answer
    x = 60,176.45

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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.