Home / 78,097.20-117,223.56-43,053.36

Finding the Fourth Proportional to 78,097.20, 117,223.56 and 43,053.36

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Solution

The fourth proportional to 78,097.20, 117,223.56 and 43,053.36 is: 64,622.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,097.20 : 117,223.56 = 43,053.36 : x
  2. Step 2: Convert to fraction form
    78,097.20/117,223.56 = 43,053.36/x
  3. Step 3: Cross multiply
    78,097.20x = 117,223.56 × 43,053.36
  4. Step 4: Simplify right side
    78,097.20x = 5,046,868,129.16
  5. Step 5: Solve for x
    x = 5,046,868,129.16/78,097.20
  6. Step 6: Final answer
    x = 64,622.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.