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Finding the Fourth Proportional to 75,324.54, 112,987.48 and 19,164.70

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Solution

The fourth proportional to 75,324.54, 112,987.48 and 19,164.70 is: 28,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,324.54 : 112,987.48 = 19,164.70 : x
  2. Step 2: Convert to fraction form
    75,324.54/112,987.48 = 19,164.70/x
  3. Step 3: Cross multiply
    75,324.54x = 112,987.48 × 19,164.70
  4. Step 4: Simplify right side
    75,324.54x = 2,165,371,157.96
  5. Step 5: Solve for x
    x = 2,165,371,157.96/75,324.54
  6. Step 6: Final answer
    x = 28,747.22

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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.