Home / 55,927.97-77,180.75-30,777.47

Finding the Fourth Proportional to 55,927.97, 77,180.75 and 30,777.47

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Solution

The fourth proportional to 55,927.97, 77,180.75 and 30,777.47 is: 42,472.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,927.97 : 77,180.75 = 30,777.47 : x
  2. Step 2: Convert to fraction form
    55,927.97/77,180.75 = 30,777.47/x
  3. Step 3: Cross multiply
    55,927.97x = 77,180.75 × 30,777.47
  4. Step 4: Simplify right side
    55,927.97x = 2,375,428,082.75
  5. Step 5: Solve for x
    x = 2,375,428,082.75/55,927.97
  6. Step 6: Final answer
    x = 42,472.99

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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.