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Finding the Fourth Proportional to 52,745.70, 79,118.88 and 21,580.95

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Solution

The fourth proportional to 52,745.70, 79,118.88 and 21,580.95 is: 32,371.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,745.70 : 79,118.88 = 21,580.95 : x
  2. Step 2: Convert to fraction form
    52,745.70/79,118.88 = 21,580.95/x
  3. Step 3: Cross multiply
    52,745.70x = 79,118.88 × 21,580.95
  4. Step 4: Simplify right side
    52,745.70x = 1,707,460,593.34
  5. Step 5: Solve for x
    x = 1,707,460,593.34/52,745.70
  6. Step 6: Final answer
    x = 32,371.56

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1.5x scale

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.