Home / 51,657.08-71,278.04-30,440.56

Finding the Fourth Proportional to 51,657.08, 71,278.04 and 30,440.56

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Solution

The fourth proportional to 51,657.08, 71,278.04 and 30,440.56 is: 42,002.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,657.08 : 71,278.04 = 30,440.56 : x
  2. Step 2: Convert to fraction form
    51,657.08/71,278.04 = 30,440.56/x
  3. Step 3: Cross multiply
    51,657.08x = 71,278.04 × 30,440.56
  4. Step 4: Simplify right side
    51,657.08x = 2,169,743,453.30
  5. Step 5: Solve for x
    x = 2,169,743,453.30/51,657.08
  6. Step 6: Final answer
    x = 42,002.83

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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.