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Finding the Fourth Proportional to 69,223.68, 103,835.52 and 19,301.76

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Solution

The fourth proportional to 69,223.68, 103,835.52 and 19,301.76 is: 28,952.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,223.68 : 103,835.52 = 19,301.76 : x
  2. Step 2: Convert to fraction form
    69,223.68/103,835.52 = 19,301.76/x
  3. Step 3: Cross multiply
    69,223.68x = 103,835.52 × 19,301.76
  4. Step 4: Simplify right side
    69,223.68x = 2,004,208,286.52
  5. Step 5: Solve for x
    x = 2,004,208,286.52/69,223.68
  6. Step 6: Final answer
    x = 28,952.64

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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.