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Finding the Fourth Proportional to 85,397.04, 128,102.04 and 23,067

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Solution

The fourth proportional to 85,397.04, 128,102.04 and 23,067 is: 34,602.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,397.04 : 128,102.04 = 23,067 : x
  2. Step 2: Convert to fraction form
    85,397.04/128,102.04 = 23,067/x
  3. Step 3: Cross multiply
    85,397.04x = 128,102.04 × 23,067
  4. Step 4: Simplify right side
    85,397.04x = 2,954,929,756.68
  5. Step 5: Solve for x
    x = 2,954,929,756.68/85,397.04
  6. Step 6: Final answer
    x = 34,602.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.