Home / 80,800.47-121,125.87-41,270.40

Finding the Fourth Proportional to 80,800.47, 121,125.87 and 41,270.40

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Solution

The fourth proportional to 80,800.47, 121,125.87 and 41,270.40 is: 61,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,800.47 : 121,125.87 = 41,270.40 : x
  2. Step 2: Convert to fraction form
    80,800.47/121,125.87 = 41,270.40/x
  3. Step 3: Cross multiply
    80,800.47x = 121,125.87 × 41,270.40
  4. Step 4: Simplify right side
    80,800.47x = 4,998,913,105.25
  5. Step 5: Solve for x
    x = 4,998,913,105.25/80,800.47
  6. Step 6: Final answer
    x = 61,867.38

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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.