Home / 56,201.29-77,558.31-30,708.43

Finding the Fourth Proportional to 56,201.29, 77,558.31 and 30,708.43

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Solution

The fourth proportional to 56,201.29, 77,558.31 and 30,708.43 is: 42,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,201.29 : 77,558.31 = 30,708.43 : x
  2. Step 2: Convert to fraction form
    56,201.29/77,558.31 = 30,708.43/x
  3. Step 3: Cross multiply
    56,201.29x = 77,558.31 × 30,708.43
  4. Step 4: Simplify right side
    56,201.29x = 2,381,693,739.66
  5. Step 5: Solve for x
    x = 2,381,693,739.66/56,201.29
  6. Step 6: Final answer
    x = 42,377.92

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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.