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Finding the Fourth Proportional to 56,342.79, 84,401.19 and 26,789.13

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Solution

The fourth proportional to 56,342.79, 84,401.19 and 26,789.13 is: 40,129.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,342.79 : 84,401.19 = 26,789.13 : x
  2. Step 2: Convert to fraction form
    56,342.79/84,401.19 = 26,789.13/x
  3. Step 3: Cross multiply
    56,342.79x = 84,401.19 × 26,789.13
  4. Step 4: Simplify right side
    56,342.79x = 2,261,034,451.06
  5. Step 5: Solve for x
    x = 2,261,034,451.06/56,342.79
  6. Step 6: Final answer
    x = 40,129.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.