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Finding the Fourth Proportional to 70,268.78, 105,387.90 and 22,241.12

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Solution

The fourth proportional to 70,268.78, 105,387.90 and 22,241.12 is: 33,356.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,268.78 : 105,387.90 = 22,241.12 : x
  2. Step 2: Convert to fraction form
    70,268.78/105,387.90 = 22,241.12/x
  3. Step 3: Cross multiply
    70,268.78x = 105,387.90 × 22,241.12
  4. Step 4: Simplify right side
    70,268.78x = 2,343,944,679.06
  5. Step 5: Solve for x
    x = 2,343,944,679.06/70,268.78
  6. Step 6: Final answer
    x = 33,356.84

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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.