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Finding the Fourth Proportional to 78,730.58, 108,615.47 and 46,452.38

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Solution

The fourth proportional to 78,730.58, 108,615.47 and 46,452.38 is: 64,084.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,730.58 : 108,615.47 = 46,452.38 : x
  2. Step 2: Convert to fraction form
    78,730.58/108,615.47 = 46,452.38/x
  3. Step 3: Cross multiply
    78,730.58x = 108,615.47 × 46,452.38
  4. Step 4: Simplify right side
    78,730.58x = 5,045,446,310.98
  5. Step 5: Solve for x
    x = 5,045,446,310.98/78,730.58
  6. Step 6: Final answer
    x = 64,084.97

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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.