Home / 80,707.20-111,334.08-47,153.76

Finding the Fourth Proportional to 80,707.20, 111,334.08 and 47,153.76

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Solution

The fourth proportional to 80,707.20, 111,334.08 and 47,153.76 is: 65,047.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,707.20 : 111,334.08 = 47,153.76 : x
  2. Step 2: Convert to fraction form
    80,707.20/111,334.08 = 47,153.76/x
  3. Step 3: Cross multiply
    80,707.20x = 111,334.08 × 47,153.76
  4. Step 4: Simplify right side
    80,707.20x = 5,249,820,488.14
  5. Step 5: Solve for x
    x = 5,249,820,488.14/80,707.20
  6. Step 6: Final answer
    x = 65,047.73

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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.