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Finding the Fourth Proportional to 68,373.16, 94,357.38 and 40,077.16

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Solution

The fourth proportional to 68,373.16, 94,357.38 and 40,077.16 is: 55,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,373.16 : 94,357.38 = 40,077.16 : x
  2. Step 2: Convert to fraction form
    68,373.16/94,357.38 = 40,077.16/x
  3. Step 3: Cross multiply
    68,373.16x = 94,357.38 × 40,077.16
  4. Step 4: Simplify right side
    68,373.16x = 3,781,575,815.44
  5. Step 5: Solve for x
    x = 3,781,575,815.44/68,373.16
  6. Step 6: Final answer
    x = 55,307.90

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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.