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Finding the Fourth Proportional to 85,883.62, 128,825.43 and 26,723.02

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Solution

The fourth proportional to 85,883.62, 128,825.43 and 26,723.02 is: 40,084.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,883.62 : 128,825.43 = 26,723.02 : x
  2. Step 2: Convert to fraction form
    85,883.62/128,825.43 = 26,723.02/x
  3. Step 3: Cross multiply
    85,883.62x = 128,825.43 × 26,723.02
  4. Step 4: Simplify right side
    85,883.62x = 3,442,604,542.40
  5. Step 5: Solve for x
    x = 3,442,604,542.40/85,883.62
  6. Step 6: Final answer
    x = 40,084.53

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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.