Home / 75,946.24-113,919.40-19,786.20

Finding the Fourth Proportional to 75,946.24, 113,919.40 and 19,786.20

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Solution

The fourth proportional to 75,946.24, 113,919.40 and 19,786.20 is: 29,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,946.24 : 113,919.40 = 19,786.20 : x
  2. Step 2: Convert to fraction form
    75,946.24/113,919.40 = 19,786.20/x
  3. Step 3: Cross multiply
    75,946.24x = 113,919.40 × 19,786.20
  4. Step 4: Simplify right side
    75,946.24x = 2,254,032,032.28
  5. Step 5: Solve for x
    x = 2,254,032,032.28/75,946.24
  6. Step 6: Final answer
    x = 29,679.31

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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.