Home / 80,709.76-121,084.06-25,305.76

Finding the Fourth Proportional to 80,709.76, 121,084.06 and 25,305.76

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Solution

The fourth proportional to 80,709.76, 121,084.06 and 25,305.76 is: 37,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,709.76 : 121,084.06 = 25,305.76 : x
  2. Step 2: Convert to fraction form
    80,709.76/121,084.06 = 25,305.76/x
  3. Step 3: Cross multiply
    80,709.76x = 121,084.06 × 25,305.76
  4. Step 4: Simplify right side
    80,709.76x = 3,064,124,162.19
  5. Step 5: Solve for x
    x = 3,064,124,162.19/80,709.76
  6. Step 6: Final answer
    x = 37,964.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.