Home / 49,129.50-67,809.65-31,221.01

Finding the Fourth Proportional to 49,129.50, 67,809.65 and 31,221.01

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Solution

The fourth proportional to 49,129.50, 67,809.65 and 31,221.01 is: 43,091.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,129.50 : 67,809.65 = 31,221.01 : x
  2. Step 2: Convert to fraction form
    49,129.50/67,809.65 = 31,221.01/x
  3. Step 3: Cross multiply
    49,129.50x = 67,809.65 × 31,221.01
  4. Step 4: Simplify right side
    49,129.50x = 2,117,085,760.75
  5. Step 5: Solve for x
    x = 2,117,085,760.75/49,129.50
  6. Step 6: Final answer
    x = 43,091.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.