Home / 49,129.79-67,810.04-31,221.29

Finding the Fourth Proportional to 49,129.79, 67,810.04 and 31,221.29

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Solution

The fourth proportional to 49,129.79, 67,810.04 and 31,221.29 is: 43,092.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,129.79 : 67,810.04 = 31,221.29 : x
  2. Step 2: Convert to fraction form
    49,129.79/67,810.04 = 31,221.29/x
  3. Step 3: Cross multiply
    49,129.79x = 67,810.04 × 31,221.29
  4. Step 4: Simplify right side
    49,129.79x = 2,117,116,937.17
  5. Step 5: Solve for x
    x = 2,117,116,937.17/49,129.79
  6. Step 6: Final answer
    x = 43,092.33

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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.