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Finding the Fourth Proportional to 89,648.88, 134,443.24 and 45,247.32

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Solution

The fourth proportional to 89,648.88, 134,443.24 and 45,247.32 is: 67,855.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,648.88 : 134,443.24 = 45,247.32 : x
  2. Step 2: Convert to fraction form
    89,648.88/134,443.24 = 45,247.32/x
  3. Step 3: Cross multiply
    89,648.88x = 134,443.24 × 45,247.32
  4. Step 4: Simplify right side
    89,648.88x = 6,083,196,302.12
  5. Step 5: Solve for x
    x = 6,083,196,302.12/89,648.88
  6. Step 6: Final answer
    x = 67,855.80

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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.