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Finding the Fourth Proportional to 75,305.99, 112,958.38 and 19,146.26

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Solution

The fourth proportional to 75,305.99, 112,958.38 and 19,146.26 is: 28,719.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,305.99 : 112,958.38 = 19,146.26 : x
  2. Step 2: Convert to fraction form
    75,305.99/112,958.38 = 19,146.26/x
  3. Step 3: Cross multiply
    75,305.99x = 112,958.38 × 19,146.26
  4. Step 4: Simplify right side
    75,305.99x = 2,162,730,512.66
  5. Step 5: Solve for x
    x = 2,162,730,512.66/75,305.99
  6. Step 6: Final answer
    x = 28,719.24

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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.