Home / 78,694.25-108,598.08-42,884.27

Finding the Fourth Proportional to 78,694.25, 108,598.08 and 42,884.27

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Solution

The fourth proportional to 78,694.25, 108,598.08 and 42,884.27 is: 59,180.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,694.25 : 108,598.08 = 42,884.27 : x
  2. Step 2: Convert to fraction form
    78,694.25/108,598.08 = 42,884.27/x
  3. Step 3: Cross multiply
    78,694.25x = 108,598.08 × 42,884.27
  4. Step 4: Simplify right side
    78,694.25x = 4,657,149,409.27
  5. Step 5: Solve for x
    x = 4,657,149,409.27/78,694.25
  6. Step 6: Final answer
    x = 59,180.30

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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.