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Finding the Fourth Proportional to 64,833.70, 89,381.73 and 40,948.42

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Solution

The fourth proportional to 64,833.70, 89,381.73 and 40,948.42 is: 56,452.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,833.70 : 89,381.73 = 40,948.42 : x
  2. Step 2: Convert to fraction form
    64,833.70/89,381.73 = 40,948.42/x
  3. Step 3: Cross multiply
    64,833.70x = 89,381.73 × 40,948.42
  4. Step 4: Simplify right side
    64,833.70x = 3,660,040,620.37
  5. Step 5: Solve for x
    x = 3,660,040,620.37/64,833.70
  6. Step 6: Final answer
    x = 56,452.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.