Home / 55,543.73-76,648.46-31,678.11

Finding the Fourth Proportional to 55,543.73, 76,648.46 and 31,678.11

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Solution

The fourth proportional to 55,543.73, 76,648.46 and 31,678.11 is: 43,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,543.73 : 76,648.46 = 31,678.11 : x
  2. Step 2: Convert to fraction form
    55,543.73/76,648.46 = 31,678.11/x
  3. Step 3: Cross multiply
    55,543.73x = 76,648.46 × 31,678.11
  4. Step 4: Simplify right side
    55,543.73x = 2,428,078,188.82
  5. Step 5: Solve for x
    x = 2,428,078,188.82/55,543.73
  6. Step 6: Final answer
    x = 43,714.72

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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.