Home / 49,785.20-74,677.80-31,353.20

Finding the Fourth Proportional to 49,785.20, 74,677.80 and 31,353.20

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Solution

The fourth proportional to 49,785.20, 74,677.80 and 31,353.20 is: 47,029.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,785.20 : 74,677.80 = 31,353.20 : x
  2. Step 2: Convert to fraction form
    49,785.20/74,677.80 = 31,353.20/x
  3. Step 3: Cross multiply
    49,785.20x = 74,677.80 × 31,353.20
  4. Step 4: Simplify right side
    49,785.20x = 2,341,387,998.96
  5. Step 5: Solve for x
    x = 2,341,387,998.96/49,785.20
  6. Step 6: Final answer
    x = 47,029.80

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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.