Home / 68,945.12-103,434.84-19,697.12

Finding the Fourth Proportional to 68,945.12, 103,434.84 and 19,697.12

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Solution

The fourth proportional to 68,945.12, 103,434.84 and 19,697.12 is: 29,550.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,945.12 : 103,434.84 = 19,697.12 : x
  2. Step 2: Convert to fraction form
    68,945.12/103,434.84 = 19,697.12/x
  3. Step 3: Cross multiply
    68,945.12x = 103,434.84 × 19,697.12
  4. Step 4: Simplify right side
    68,945.12x = 2,037,368,455.66
  5. Step 5: Solve for x
    x = 2,037,368,455.66/68,945.12
  6. Step 6: Final answer
    x = 29,550.58

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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.