Home / 83,129.59-114,714.09-49,141.23

Finding the Fourth Proportional to 83,129.59, 114,714.09 and 49,141.23

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Solution

The fourth proportional to 83,129.59, 114,714.09 and 49,141.23 is: 67,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,129.59 : 114,714.09 = 49,141.23 : x
  2. Step 2: Convert to fraction form
    83,129.59/114,714.09 = 49,141.23/x
  3. Step 3: Cross multiply
    83,129.59x = 114,714.09 × 49,141.23
  4. Step 4: Simplify right side
    83,129.59x = 5,637,191,480.93
  5. Step 5: Solve for x
    x = 5,637,191,480.93/83,129.59
  6. Step 6: Final answer
    x = 67,812.09

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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.