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Finding the Fourth Proportional to 69,689.58, 96,186.92 and 45,818.47

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Solution

The fourth proportional to 69,689.58, 96,186.92 and 45,818.47 is: 63,239.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,689.58 : 96,186.92 = 45,818.47 : x
  2. Step 2: Convert to fraction form
    69,689.58/96,186.92 = 45,818.47/x
  3. Step 3: Cross multiply
    69,689.58x = 96,186.92 × 45,818.47
  4. Step 4: Simplify right side
    69,689.58x = 4,407,137,508.41
  5. Step 5: Solve for x
    x = 4,407,137,508.41/69,689.58
  6. Step 6: Final answer
    x = 63,239.55

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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.