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Finding the Fourth Proportional to 75,305.34, 112,958.40 and 25,385.87

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Solution

The fourth proportional to 75,305.34, 112,958.40 and 25,385.87 is: 38,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,305.34 : 112,958.40 = 25,385.87 : x
  2. Step 2: Convert to fraction form
    75,305.34/112,958.40 = 25,385.87/x
  3. Step 3: Cross multiply
    75,305.34x = 112,958.40 × 25,385.87
  4. Step 4: Simplify right side
    75,305.34x = 2,867,546,693.02
  5. Step 5: Solve for x
    x = 2,867,546,693.02/75,305.34
  6. Step 6: Final answer
    x = 38,078.93

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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.