Home / 69,728.46-96,234.12-39,518.70

Finding the Fourth Proportional to 69,728.46, 96,234.12 and 39,518.70

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Solution

The fourth proportional to 69,728.46, 96,234.12 and 39,518.70 is: 54,540.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.46 : 96,234.12 = 39,518.70 : x
  2. Step 2: Convert to fraction form
    69,728.46/96,234.12 = 39,518.70/x
  3. Step 3: Cross multiply
    69,728.46x = 96,234.12 × 39,518.70
  4. Step 4: Simplify right side
    69,728.46x = 3,803,047,318.04
  5. Step 5: Solve for x
    x = 3,803,047,318.04/69,728.46
  6. Step 6: Final answer
    x = 54,540.82

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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.