Home / 57,159.39-78,876.15-31,664.04

Finding the Fourth Proportional to 57,159.39, 78,876.15 and 31,664.04

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Solution

The fourth proportional to 57,159.39, 78,876.15 and 31,664.04 is: 43,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,159.39 : 78,876.15 = 31,664.04 : x
  2. Step 2: Convert to fraction form
    57,159.39/78,876.15 = 31,664.04/x
  3. Step 3: Cross multiply
    57,159.39x = 78,876.15 × 31,664.04
  4. Step 4: Simplify right side
    57,159.39x = 2,497,537,568.65
  5. Step 5: Solve for x
    x = 2,497,537,568.65/57,159.39
  6. Step 6: Final answer
    x = 43,694.27

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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.