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Finding the Fourth Proportional to 85,289.54, 127,958.92 and 26,133.93

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Solution

The fourth proportional to 85,289.54, 127,958.92 and 26,133.93 is: 39,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,289.54 : 127,958.92 = 26,133.93 : x
  2. Step 2: Convert to fraction form
    85,289.54/127,958.92 = 26,133.93/x
  3. Step 3: Cross multiply
    85,289.54x = 127,958.92 × 26,133.93
  4. Step 4: Simplify right side
    85,289.54x = 3,344,069,304.76
  5. Step 5: Solve for x
    x = 3,344,069,304.76/85,289.54
  6. Step 6: Final answer
    x = 39,208.43

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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.