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Finding the Fourth Proportional to 85,770.01, 128,648.85 and 26,604.15

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Solution

The fourth proportional to 85,770.01, 128,648.85 and 26,604.15 is: 39,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,770.01 : 128,648.85 = 26,604.15 : x
  2. Step 2: Convert to fraction form
    85,770.01/128,648.85 = 26,604.15/x
  3. Step 3: Cross multiply
    85,770.01x = 128,648.85 × 26,604.15
  4. Step 4: Simplify right side
    85,770.01x = 3,422,593,302.73
  5. Step 5: Solve for x
    x = 3,422,593,302.73/85,770.01
  6. Step 6: Final answer
    x = 39,904.31

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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.