Home / 74,429.27-102,711.85-40,438.04

Finding the Fourth Proportional to 74,429.27, 102,711.85 and 40,438.04

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Solution

The fourth proportional to 74,429.27, 102,711.85 and 40,438.04 is: 55,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,429.27 : 102,711.85 = 40,438.04 : x
  2. Step 2: Convert to fraction form
    74,429.27/102,711.85 = 40,438.04/x
  3. Step 3: Cross multiply
    74,429.27x = 102,711.85 × 40,438.04
  4. Step 4: Simplify right side
    74,429.27x = 4,153,465,898.77
  5. Step 5: Solve for x
    x = 4,153,465,898.77/74,429.27
  6. Step 6: Final answer
    x = 55,804.20

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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.