Home / 78,207.04-107,897.43-51,364.09

Finding the Fourth Proportional to 78,207.04, 107,897.43 and 51,364.09

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Solution

The fourth proportional to 78,207.04, 107,897.43 and 51,364.09 is: 70,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,207.04 : 107,897.43 = 51,364.09 : x
  2. Step 2: Convert to fraction form
    78,207.04/107,897.43 = 51,364.09/x
  3. Step 3: Cross multiply
    78,207.04x = 107,897.43 × 51,364.09
  4. Step 4: Simplify right side
    78,207.04x = 5,542,053,305.29
  5. Step 5: Solve for x
    x = 5,542,053,305.29/78,207.04
  6. Step 6: Final answer
    x = 70,863.87

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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.