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Finding the Fourth Proportional to 75,269.91, 112,905.06 and 25,385.05

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Solution

The fourth proportional to 75,269.91, 112,905.06 and 25,385.05 is: 38,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,269.91 : 112,905.06 = 25,385.05 : x
  2. Step 2: Convert to fraction form
    75,269.91/112,905.06 = 25,385.05/x
  3. Step 3: Cross multiply
    75,269.91x = 112,905.06 × 25,385.05
  4. Step 4: Simplify right side
    75,269.91x = 2,866,099,997.10
  5. Step 5: Solve for x
    x = 2,866,099,997.10/75,269.91
  6. Step 6: Final answer
    x = 38,077.63

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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.