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Finding the Fourth Proportional to 89,424, 134,045.28 and 36,862.56

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Solution

The fourth proportional to 89,424, 134,045.28 and 36,862.56 is: 55,256.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,424 : 134,045.28 = 36,862.56 : x
  2. Step 2: Convert to fraction form
    89,424/134,045.28 = 36,862.56/x
  3. Step 3: Cross multiply
    89,424x = 134,045.28 × 36,862.56
  4. Step 4: Simplify right side
    89,424x = 4,941,252,176.72
  5. Step 5: Solve for x
    x = 4,941,252,176.72/89,424
  6. Step 6: Final answer
    x = 55,256.44

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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.