Home / 55,927-77,179.80-30,777.04

Finding the Fourth Proportional to 55,927, 77,179.80 and 30,777.04

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Solution

The fourth proportional to 55,927, 77,179.80 and 30,777.04 is: 42,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,927 : 77,179.80 = 30,777.04 : x
  2. Step 2: Convert to fraction form
    55,927/77,179.80 = 30,777.04/x
  3. Step 3: Cross multiply
    55,927x = 77,179.80 × 30,777.04
  4. Step 4: Simplify right side
    55,927x = 2,375,365,791.79
  5. Step 5: Solve for x
    x = 2,375,365,791.79/55,927
  6. Step 6: Final answer
    x = 42,472.61

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1.5x scale

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.