Home / 55,822-77,034.92-30,672.04

Finding the Fourth Proportional to 55,822, 77,034.92 and 30,672.04

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Solution

The fourth proportional to 55,822, 77,034.92 and 30,672.04 is: 42,327.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,822 : 77,034.92 = 30,672.04 : x
  2. Step 2: Convert to fraction form
    55,822/77,034.92 = 30,672.04/x
  3. Step 3: Cross multiply
    55,822x = 77,034.92 × 30,672.04
  4. Step 4: Simplify right side
    55,822x = 2,362,818,147.64
  5. Step 5: Solve for x
    x = 2,362,818,147.64/55,822
  6. Step 6: Final answer
    x = 42,327.72

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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.