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Finding the Fourth Proportional to 80,271.85, 110,776.95 and 45,815.90

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Solution

The fourth proportional to 80,271.85, 110,776.95 and 45,815.90 is: 63,226.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,271.85 : 110,776.95 = 45,815.90 : x
  2. Step 2: Convert to fraction form
    80,271.85/110,776.95 = 45,815.90/x
  3. Step 3: Cross multiply
    80,271.85x = 110,776.95 × 45,815.90
  4. Step 4: Simplify right side
    80,271.85x = 5,075,345,109.62
  5. Step 5: Solve for x
    x = 5,075,345,109.62/80,271.85
  6. Step 6: Final answer
    x = 63,226.96

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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.