Home / 55,930.93-77,184.65-30,780.43

Finding the Fourth Proportional to 55,930.93, 77,184.65 and 30,780.43

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Solution

The fourth proportional to 55,930.93, 77,184.65 and 30,780.43 is: 42,476.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,930.93 : 77,184.65 = 30,780.43 : x
  2. Step 2: Convert to fraction form
    55,930.93/77,184.65 = 30,780.43/x
  3. Step 3: Cross multiply
    55,930.93x = 77,184.65 × 30,780.43
  4. Step 4: Simplify right side
    55,930.93x = 2,375,776,600.39
  5. Step 5: Solve for x
    x = 2,375,776,600.39/55,930.93
  6. Step 6: Final answer
    x = 42,476.97

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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.