Home / 65,909.01-90,956.11-40,429.43

Finding the Fourth Proportional to 65,909.01, 90,956.11 and 40,429.43

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Solution

The fourth proportional to 65,909.01, 90,956.11 and 40,429.43 is: 55,793.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,909.01 : 90,956.11 = 40,429.43 : x
  2. Step 2: Convert to fraction form
    65,909.01/90,956.11 = 40,429.43/x
  3. Step 3: Cross multiply
    65,909.01x = 90,956.11 × 40,429.43
  4. Step 4: Simplify right side
    65,909.01x = 3,677,303,252.78
  5. Step 5: Solve for x
    x = 3,677,303,252.78/65,909.01
  6. Step 6: Final answer
    x = 55,793.63

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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.