Home / 56,761.13-78,330.38-31,610.63

Finding the Fourth Proportional to 56,761.13, 78,330.38 and 31,610.63

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Solution

The fourth proportional to 56,761.13, 78,330.38 and 31,610.63 is: 43,622.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,761.13 : 78,330.38 = 31,610.63 : x
  2. Step 2: Convert to fraction form
    56,761.13/78,330.38 = 31,610.63/x
  3. Step 3: Cross multiply
    56,761.13x = 78,330.38 × 31,610.63
  4. Step 4: Simplify right side
    56,761.13x = 2,476,072,110.23
  5. Step 5: Solve for x
    x = 2,476,072,110.23/56,761.13
  6. Step 6: Final answer
    x = 43,622.68

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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.