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Finding the Fourth Proportional to 45,129, 62,278.08 and 25,257

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Solution

The fourth proportional to 45,129, 62,278.08 and 25,257 is: 34,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,129 : 62,278.08 = 25,257 : x
  2. Step 2: Convert to fraction form
    45,129/62,278.08 = 25,257/x
  3. Step 3: Cross multiply
    45,129x = 62,278.08 × 25,257
  4. Step 4: Simplify right side
    45,129x = 1,572,957,466.56
  5. Step 5: Solve for x
    x = 1,572,957,466.56/45,129
  6. Step 6: Final answer
    x = 34,854.69

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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.