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Finding the Fourth Proportional to 69,067.79, 103,601.67 and 45,688.76

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Solution

The fourth proportional to 69,067.79, 103,601.67 and 45,688.76 is: 68,533.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,067.79 : 103,601.67 = 45,688.76 : x
  2. Step 2: Convert to fraction form
    69,067.79/103,601.67 = 45,688.76/x
  3. Step 3: Cross multiply
    69,067.79x = 103,601.67 × 45,688.76
  4. Step 4: Simplify right side
    69,067.79x = 4,733,431,318.22
  5. Step 5: Solve for x
    x = 4,733,431,318.22/69,067.79
  6. Step 6: Final answer
    x = 68,533.13

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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.