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Finding the Fourth Proportional to 74,393.34, 111,449.28 and 57,671.43

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Solution

The fourth proportional to 74,393.34, 111,449.28 and 57,671.43 is: 86,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,393.34 : 111,449.28 = 57,671.43 : x
  2. Step 2: Convert to fraction form
    74,393.34/111,449.28 = 57,671.43/x
  3. Step 3: Cross multiply
    74,393.34x = 111,449.28 × 57,671.43
  4. Step 4: Simplify right side
    74,393.34x = 6,427,439,350.07
  5. Step 5: Solve for x
    x = 6,427,439,350.07/74,393.34
  6. Step 6: Final answer
    x = 86,398.05

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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.