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Finding the Fourth Proportional to 63,107.93, 94,641.35 and 20,976.71

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Solution

The fourth proportional to 63,107.93, 94,641.35 and 20,976.71 is: 31,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,107.93 : 94,641.35 = 20,976.71 : x
  2. Step 2: Convert to fraction form
    63,107.93/94,641.35 = 20,976.71/x
  3. Step 3: Cross multiply
    63,107.93x = 94,641.35 × 20,976.71
  4. Step 4: Simplify right side
    63,107.93x = 1,985,264,284.68
  5. Step 5: Solve for x
    x = 1,985,264,284.68/63,107.93
  6. Step 6: Final answer
    x = 31,458.24

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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.