Home / 80,976.61-111,747.89-45,165.70

Finding the Fourth Proportional to 80,976.61, 111,747.89 and 45,165.70

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Solution

The fourth proportional to 80,976.61, 111,747.89 and 45,165.70 is: 62,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,976.61 : 111,747.89 = 45,165.70 : x
  2. Step 2: Convert to fraction form
    80,976.61/111,747.89 = 45,165.70/x
  3. Step 3: Cross multiply
    80,976.61x = 111,747.89 × 45,165.70
  4. Step 4: Simplify right side
    80,976.61x = 5,047,171,675.37
  5. Step 5: Solve for x
    x = 5,047,171,675.37/80,976.61
  6. Step 6: Final answer
    x = 62,328.76

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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.