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Finding the Fourth Proportional to 89,003.52, 122,855.52 and 51,292.80

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Solution

The fourth proportional to 89,003.52, 122,855.52 and 51,292.80 is: 70,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,003.52 : 122,855.52 = 51,292.80 : x
  2. Step 2: Convert to fraction form
    89,003.52/122,855.52 = 51,292.80/x
  3. Step 3: Cross multiply
    89,003.52x = 122,855.52 × 51,292.80
  4. Step 4: Simplify right side
    89,003.52x = 6,301,603,616.26
  5. Step 5: Solve for x
    x = 6,301,603,616.26/89,003.52
  6. Step 6: Final answer
    x = 70,801.73

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1.5x scale

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.