Home / 74,508.14-102,859.34-57,474.16

Finding the Fourth Proportional to 74,508.14, 102,859.34 and 57,474.16

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Solution

The fourth proportional to 74,508.14, 102,859.34 and 57,474.16 is: 79,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.14 : 102,859.34 = 57,474.16 : x
  2. Step 2: Convert to fraction form
    74,508.14/102,859.34 = 57,474.16/x
  3. Step 3: Cross multiply
    74,508.14x = 102,859.34 × 57,474.16
  4. Step 4: Simplify right side
    74,508.14x = 5,911,753,620.14
  5. Step 5: Solve for x
    x = 5,911,753,620.14/74,508.14
  6. Step 6: Final answer
    x = 79,343.73

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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.