Home / 80,729.82-111,423.51-47,206.62

Finding the Fourth Proportional to 80,729.82, 111,423.51 and 47,206.62

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Solution

The fourth proportional to 80,729.82, 111,423.51 and 47,206.62 is: 65,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,729.82 : 111,423.51 = 47,206.62 : x
  2. Step 2: Convert to fraction form
    80,729.82/111,423.51 = 47,206.62/x
  3. Step 3: Cross multiply
    80,729.82x = 111,423.51 × 47,206.62
  4. Step 4: Simplify right side
    80,729.82x = 5,259,927,295.64
  5. Step 5: Solve for x
    x = 5,259,927,295.64/80,729.82
  6. Step 6: Final answer
    x = 65,154.70

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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.