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Finding the Fourth Proportional to 64,565.70, 89,100.03 and 35,885.42

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Solution

The fourth proportional to 64,565.70, 89,100.03 and 35,885.42 is: 49,521.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,565.70 : 89,100.03 = 35,885.42 : x
  2. Step 2: Convert to fraction form
    64,565.70/89,100.03 = 35,885.42/x
  3. Step 3: Cross multiply
    64,565.70x = 89,100.03 × 35,885.42
  4. Step 4: Simplify right side
    64,565.70x = 3,197,391,998.56
  5. Step 5: Solve for x
    x = 3,197,391,998.56/64,565.70
  6. Step 6: Final answer
    x = 49,521.53

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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.