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Finding the Fourth Proportional to 80,019.72, 110,392.34 and 46,020.78

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Solution

The fourth proportional to 80,019.72, 110,392.34 and 46,020.78 is: 63,488.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,019.72 : 110,392.34 = 46,020.78 : x
  2. Step 2: Convert to fraction form
    80,019.72/110,392.34 = 46,020.78/x
  3. Step 3: Cross multiply
    80,019.72x = 110,392.34 × 46,020.78
  4. Step 4: Simplify right side
    80,019.72x = 5,080,341,362.72
  5. Step 5: Solve for x
    x = 5,080,341,362.72/80,019.72
  6. Step 6: Final answer
    x = 63,488.62

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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.