Home / 78,714.17-108,625.62-42,903.46

Finding the Fourth Proportional to 78,714.17, 108,625.62 and 42,903.46

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Solution

The fourth proportional to 78,714.17, 108,625.62 and 42,903.46 is: 59,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,714.17 : 108,625.62 = 42,903.46 : x
  2. Step 2: Convert to fraction form
    78,714.17/108,625.62 = 42,903.46/x
  3. Step 3: Cross multiply
    78,714.17x = 108,625.62 × 42,903.46
  4. Step 4: Simplify right side
    78,714.17x = 4,660,414,942.65
  5. Step 5: Solve for x
    x = 4,660,414,942.65/78,714.17
  6. Step 6: Final answer
    x = 59,206.81

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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.