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Finding the Fourth Proportional to 67,653.62, 101,480.40 and 42,731.54

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Solution

The fourth proportional to 67,653.62, 101,480.40 and 42,731.54 is: 64,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,653.62 : 101,480.40 = 42,731.54 : x
  2. Step 2: Convert to fraction form
    67,653.62/101,480.40 = 42,731.54/x
  3. Step 3: Cross multiply
    67,653.62x = 101,480.40 × 42,731.54
  4. Step 4: Simplify right side
    67,653.62x = 4,336,413,264.41
  5. Step 5: Solve for x
    x = 4,336,413,264.41/67,653.62
  6. Step 6: Final answer
    x = 64,097.29

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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.