Home / 56,511.72-77,982.66-31,360.68

Finding the Fourth Proportional to 56,511.72, 77,982.66 and 31,360.68

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Solution

The fourth proportional to 56,511.72, 77,982.66 and 31,360.68 is: 43,275.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,511.72 : 77,982.66 = 31,360.68 : x
  2. Step 2: Convert to fraction form
    56,511.72/77,982.66 = 31,360.68/x
  3. Step 3: Cross multiply
    56,511.72x = 77,982.66 × 31,360.68
  4. Step 4: Simplify right side
    56,511.72x = 2,445,589,245.81
  5. Step 5: Solve for x
    x = 2,445,589,245.81/56,511.72
  6. Step 6: Final answer
    x = 43,275.79

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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.