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Finding the Fourth Proportional to 65,484.48, 90,339.84 and 44,256

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Solution

The fourth proportional to 65,484.48, 90,339.84 and 44,256 is: 61,053.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,484.48 : 90,339.84 = 44,256 : x
  2. Step 2: Convert to fraction form
    65,484.48/90,339.84 = 44,256/x
  3. Step 3: Cross multiply
    65,484.48x = 90,339.84 × 44,256
  4. Step 4: Simplify right side
    65,484.48x = 3,998,079,959.04
  5. Step 5: Solve for x
    x = 3,998,079,959.04/65,484.48
  6. Step 6: Final answer
    x = 61,053.86

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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.