Home / 75,854.73-113,782.09-19,690.18

Finding the Fourth Proportional to 75,854.73, 113,782.09 and 19,690.18

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Solution

The fourth proportional to 75,854.73, 113,782.09 and 19,690.18 is: 29,535.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,854.73 : 113,782.09 = 19,690.18 : x
  2. Step 2: Convert to fraction form
    75,854.73/113,782.09 = 19,690.18/x
  3. Step 3: Cross multiply
    75,854.73x = 113,782.09 × 19,690.18
  4. Step 4: Simplify right side
    75,854.73x = 2,240,389,431.49
  5. Step 5: Solve for x
    x = 2,240,389,431.49/75,854.73
  6. Step 6: Final answer
    x = 29,535.26

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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.