Home / 80,823.84-111,535.92-47,289.84

Finding the Fourth Proportional to 80,823.84, 111,535.92 and 47,289.84

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Solution

The fourth proportional to 80,823.84, 111,535.92 and 47,289.84 is: 65,259.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,823.84 : 111,535.92 = 47,289.84 : x
  2. Step 2: Convert to fraction form
    80,823.84/111,535.92 = 47,289.84/x
  3. Step 3: Cross multiply
    80,823.84x = 111,535.92 × 47,289.84
  4. Step 4: Simplify right side
    80,823.84x = 5,274,515,811.05
  5. Step 5: Solve for x
    x = 5,274,515,811.05/80,823.84
  6. Step 6: Final answer
    x = 65,259.41

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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.