Home / 79,965.04-110,818.52-78,837.52

Finding the Fourth Proportional to 79,965.04, 110,818.52 and 78,837.52

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Solution

The fourth proportional to 79,965.04, 110,818.52 and 78,837.52 is: 109,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965.04 : 110,818.52 = 78,837.52 : x
  2. Step 2: Convert to fraction form
    79,965.04/110,818.52 = 78,837.52/x
  3. Step 3: Cross multiply
    79,965.04x = 110,818.52 × 78,837.52
  4. Step 4: Simplify right side
    79,965.04x = 8,736,657,286.87
  5. Step 5: Solve for x
    x = 8,736,657,286.87/79,965.04
  6. Step 6: Final answer
    x = 109,255.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.