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Finding the Fourth Proportional to 85,559.40, 128,360.97 and 32,954.76

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Solution

The fourth proportional to 85,559.40, 128,360.97 and 32,954.76 is: 49,440.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,559.40 : 128,360.97 = 32,954.76 : x
  2. Step 2: Convert to fraction form
    85,559.40/128,360.97 = 32,954.76/x
  3. Step 3: Cross multiply
    85,559.40x = 128,360.97 × 32,954.76
  4. Step 4: Simplify right side
    85,559.40x = 4,230,104,959.72
  5. Step 5: Solve for x
    x = 4,230,104,959.72/85,559.40
  6. Step 6: Final answer
    x = 49,440.56

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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.