Home / 80,518.32-111,107.16-47,003.76

Finding the Fourth Proportional to 80,518.32, 111,107.16 and 47,003.76

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Solution

The fourth proportional to 80,518.32, 111,107.16 and 47,003.76 is: 64,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,518.32 : 111,107.16 = 47,003.76 : x
  2. Step 2: Convert to fraction form
    80,518.32/111,107.16 = 47,003.76/x
  3. Step 3: Cross multiply
    80,518.32x = 111,107.16 × 47,003.76
  4. Step 4: Simplify right side
    80,518.32x = 5,222,454,282.92
  5. Step 5: Solve for x
    x = 5,222,454,282.92/80,518.32
  6. Step 6: Final answer
    x = 64,860.45

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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.