Home / 72,730.29-100,381.62-45,519.03

Finding the Fourth Proportional to 72,730.29, 100,381.62 and 45,519.03

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Solution

The fourth proportional to 72,730.29, 100,381.62 and 45,519.03 is: 62,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,730.29 : 100,381.62 = 45,519.03 : x
  2. Step 2: Convert to fraction form
    72,730.29/100,381.62 = 45,519.03/x
  3. Step 3: Cross multiply
    72,730.29x = 100,381.62 × 45,519.03
  4. Step 4: Simplify right side
    72,730.29x = 4,569,273,470.32
  5. Step 5: Solve for x
    x = 4,569,273,470.32/72,730.29
  6. Step 6: Final answer
    x = 62,824.90

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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.