Home / 74,143.50-102,318.03-40,610.70

Finding the Fourth Proportional to 74,143.50, 102,318.03 and 40,610.70

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Solution

The fourth proportional to 74,143.50, 102,318.03 and 40,610.70 is: 56,042.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.50 : 102,318.03 = 40,610.70 : x
  2. Step 2: Convert to fraction form
    74,143.50/102,318.03 = 40,610.70/x
  3. Step 3: Cross multiply
    74,143.50x = 102,318.03 × 40,610.70
  4. Step 4: Simplify right side
    74,143.50x = 4,155,206,820.92
  5. Step 5: Solve for x
    x = 4,155,206,820.92/74,143.50
  6. Step 6: Final answer
    x = 56,042.77

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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.