Home / 55,871.59-77,104.30-30,379.66

Finding the Fourth Proportional to 55,871.59, 77,104.30 and 30,379.66

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Solution

The fourth proportional to 55,871.59, 77,104.30 and 30,379.66 is: 41,924.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,871.59 : 77,104.30 = 30,379.66 : x
  2. Step 2: Convert to fraction form
    55,871.59/77,104.30 = 30,379.66/x
  3. Step 3: Cross multiply
    55,871.59x = 77,104.30 × 30,379.66
  4. Step 4: Simplify right side
    55,871.59x = 2,342,402,418.54
  5. Step 5: Solve for x
    x = 2,342,402,418.54/55,871.59
  6. Step 6: Final answer
    x = 41,924.75

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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.