Home / 51,659.04-71,287.14-31,512.72

Finding the Fourth Proportional to 51,659.04, 71,287.14 and 31,512.72

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Solution

The fourth proportional to 51,659.04, 71,287.14 and 31,512.72 is: 43,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,659.04 : 71,287.14 = 31,512.72 : x
  2. Step 2: Convert to fraction form
    51,659.04/71,287.14 = 31,512.72/x
  3. Step 3: Cross multiply
    51,659.04x = 71,287.14 × 31,512.72
  4. Step 4: Simplify right side
    51,659.04x = 2,246,451,682.42
  5. Step 5: Solve for x
    x = 2,246,451,682.42/51,659.04
  6. Step 6: Final answer
    x = 43,486.13

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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.