Home / 78,694.13-108,597.73-42,884.05

Finding the Fourth Proportional to 78,694.13, 108,597.73 and 42,884.05

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Solution

The fourth proportional to 78,694.13, 108,597.73 and 42,884.05 is: 59,179.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,694.13 : 108,597.73 = 42,884.05 : x
  2. Step 2: Convert to fraction form
    78,694.13/108,597.73 = 42,884.05/x
  3. Step 3: Cross multiply
    78,694.13x = 108,597.73 × 42,884.05
  4. Step 4: Simplify right side
    78,694.13x = 4,657,110,268.79
  5. Step 5: Solve for x
    x = 4,657,110,268.79/78,694.13
  6. Step 6: Final answer
    x = 59,179.90

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1.5x scale

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.