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Finding the Fourth Proportional to 80,423.82, 110,990.12 and 46,438.65

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Solution

The fourth proportional to 80,423.82, 110,990.12 and 46,438.65 is: 64,088.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,423.82 : 110,990.12 = 46,438.65 : x
  2. Step 2: Convert to fraction form
    80,423.82/110,990.12 = 46,438.65/x
  3. Step 3: Cross multiply
    80,423.82x = 110,990.12 × 46,438.65
  4. Step 4: Simplify right side
    80,423.82x = 5,154,231,103.94
  5. Step 5: Solve for x
    x = 5,154,231,103.94/80,423.82
  6. Step 6: Final answer
    x = 64,088.36

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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.