Home / 78,961.66-108,963.99-43,152.10

Finding the Fourth Proportional to 78,961.66, 108,963.99 and 43,152.10

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Solution

The fourth proportional to 78,961.66, 108,963.99 and 43,152.10 is: 59,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,961.66 : 108,963.99 = 43,152.10 : x
  2. Step 2: Convert to fraction form
    78,961.66/108,963.99 = 43,152.10/x
  3. Step 3: Cross multiply
    78,961.66x = 108,963.99 × 43,152.10
  4. Step 4: Simplify right side
    78,961.66x = 4,702,024,992.88
  5. Step 5: Solve for x
    x = 4,702,024,992.88/78,961.66
  6. Step 6: Final answer
    x = 59,548.20

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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.