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Finding the Fourth Proportional to 56,278.92, 84,324.92 and 39,604.08

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Solution

The fourth proportional to 56,278.92, 84,324.92 and 39,604.08 is: 59,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,278.92 : 84,324.92 = 39,604.08 : x
  2. Step 2: Convert to fraction form
    56,278.92/84,324.92 = 39,604.08/x
  3. Step 3: Cross multiply
    56,278.92x = 84,324.92 × 39,604.08
  4. Step 4: Simplify right side
    56,278.92x = 3,339,610,877.67
  5. Step 5: Solve for x
    x = 3,339,610,877.67/56,278.92
  6. Step 6: Final answer
    x = 59,340.35

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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.