Home / 74,572.11-102,910.59-40,581.57

Finding the Fourth Proportional to 74,572.11, 102,910.59 and 40,581.57

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Solution

The fourth proportional to 74,572.11, 102,910.59 and 40,581.57 is: 56,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.11 : 102,910.59 = 40,581.57 : x
  2. Step 2: Convert to fraction form
    74,572.11/102,910.59 = 40,581.57/x
  3. Step 3: Cross multiply
    74,572.11x = 102,910.59 × 40,581.57
  4. Step 4: Simplify right side
    74,572.11x = 4,176,273,311.83
  5. Step 5: Solve for x
    x = 4,176,273,311.83/74,572.11
  6. Step 6: Final answer
    x = 56,003.15

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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.