Home / 74,291.05-102,521.05-40,299.45

Finding the Fourth Proportional to 74,291.05, 102,521.05 and 40,299.45

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Solution

The fourth proportional to 74,291.05, 102,521.05 and 40,299.45 is: 55,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,291.05 : 102,521.05 = 40,299.45 : x
  2. Step 2: Convert to fraction form
    74,291.05/102,521.05 = 40,299.45/x
  3. Step 3: Cross multiply
    74,291.05x = 102,521.05 × 40,299.45
  4. Step 4: Simplify right side
    74,291.05x = 4,131,541,928.42
  5. Step 5: Solve for x
    x = 4,131,541,928.42/74,291.05
  6. Step 6: Final answer
    x = 55,612.92

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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.