Home / 79,961.04-110,812.96-78,833.52

Finding the Fourth Proportional to 79,961.04, 110,812.96 and 78,833.52

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Solution

The fourth proportional to 79,961.04, 110,812.96 and 78,833.52 is: 109,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,961.04 : 110,812.96 = 78,833.52 : x
  2. Step 2: Convert to fraction form
    79,961.04/110,812.96 = 78,833.52/x
  3. Step 3: Cross multiply
    79,961.04x = 110,812.96 × 78,833.52
  4. Step 4: Simplify right side
    79,961.04x = 8,735,775,698.42
  5. Step 5: Solve for x
    x = 8,735,775,698.42/79,961.04
  6. Step 6: Final answer
    x = 109,250.40

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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.