Home / 74,543.14-102,871.38-40,553.52

Finding the Fourth Proportional to 74,543.14, 102,871.38 and 40,553.52

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Solution

The fourth proportional to 74,543.14, 102,871.38 and 40,553.52 is: 55,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,543.14 : 102,871.38 = 40,553.52 : x
  2. Step 2: Convert to fraction form
    74,543.14/102,871.38 = 40,553.52/x
  3. Step 3: Cross multiply
    74,543.14x = 102,871.38 × 40,553.52
  4. Step 4: Simplify right side
    74,543.14x = 4,171,796,566.26
  5. Step 5: Solve for x
    x = 4,171,796,566.26/74,543.14
  6. Step 6: Final answer
    x = 55,964.86

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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.