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Finding the Fourth Proportional to 171,870.52, 257,805.78 and 53,551.42

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Solution

The fourth proportional to 171,870.52, 257,805.78 and 53,551.42 is: 80,327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,870.52 : 257,805.78 = 53,551.42 : x
  2. Step 2: Convert to fraction form
    171,870.52/257,805.78 = 53,551.42/x
  3. Step 3: Cross multiply
    171,870.52x = 257,805.78 × 53,551.42
  4. Step 4: Simplify right side
    171,870.52x = 13,805,865,603.21
  5. Step 5: Solve for x
    x = 13,805,865,603.21/171,870.52
  6. Step 6: Final answer
    x = 80,327.13

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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.