Home / 69,027.19-103,535.21-19,108.20

Finding the Fourth Proportional to 69,027.19, 103,535.21 and 19,108.20

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Solution

The fourth proportional to 69,027.19, 103,535.21 and 19,108.20 is: 28,660.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,027.19 : 103,535.21 = 19,108.20 : x
  2. Step 2: Convert to fraction form
    69,027.19/103,535.21 = 19,108.20/x
  3. Step 3: Cross multiply
    69,027.19x = 103,535.21 × 19,108.20
  4. Step 4: Simplify right side
    69,027.19x = 1,978,371,935.75
  5. Step 5: Solve for x
    x = 1,978,371,935.75/69,027.19
  6. Step 6: Final answer
    x = 28,660.76

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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.