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Finding the Fourth Proportional to 75,344.40, 113,016.60 and 57,629.70

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Solution

The fourth proportional to 75,344.40, 113,016.60 and 57,629.70 is: 86,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,344.40 : 113,016.60 = 57,629.70 : x
  2. Step 2: Convert to fraction form
    75,344.40/113,016.60 = 57,629.70/x
  3. Step 3: Cross multiply
    75,344.40x = 113,016.60 × 57,629.70
  4. Step 4: Simplify right side
    75,344.40x = 6,513,112,753.02
  5. Step 5: Solve for x
    x = 6,513,112,753.02/75,344.40
  6. Step 6: Final answer
    x = 86,444.55

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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.