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Finding the Fourth Proportional to 55,363.92, 76,248 and 51,806.40

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Solution

The fourth proportional to 55,363.92, 76,248 and 51,806.40 is: 71,348.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,363.92 : 76,248 = 51,806.40 : x
  2. Step 2: Convert to fraction form
    55,363.92/76,248 = 51,806.40/x
  3. Step 3: Cross multiply
    55,363.92x = 76,248 × 51,806.40
  4. Step 4: Simplify right side
    55,363.92x = 3,950,134,387.20
  5. Step 5: Solve for x
    x = 3,950,134,387.20/55,363.92
  6. Step 6: Final answer
    x = 71,348.53

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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.