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Finding the Fourth Proportional to 74,972.88, 112,459.38 and 19,568.88

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Solution

The fourth proportional to 74,972.88, 112,459.38 and 19,568.88 is: 29,353.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,972.88 : 112,459.38 = 19,568.88 : x
  2. Step 2: Convert to fraction form
    74,972.88/112,459.38 = 19,568.88/x
  3. Step 3: Cross multiply
    74,972.88x = 112,459.38 × 19,568.88
  4. Step 4: Simplify right side
    74,972.88x = 2,200,704,112.09
  5. Step 5: Solve for x
    x = 2,200,704,112.09/74,972.88
  6. Step 6: Final answer
    x = 29,353.34

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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.