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Finding the Fourth Proportional to 75,385.59, 113,079.26 and 19,225.59

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Solution

The fourth proportional to 75,385.59, 113,079.26 and 19,225.59 is: 28,838.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,385.59 : 113,079.26 = 19,225.59 : x
  2. Step 2: Convert to fraction form
    75,385.59/113,079.26 = 19,225.59/x
  3. Step 3: Cross multiply
    75,385.59x = 113,079.26 × 19,225.59
  4. Step 4: Simplify right side
    75,385.59x = 2,174,015,538.33
  5. Step 5: Solve for x
    x = 2,174,015,538.33/75,385.59
  6. Step 6: Final answer
    x = 28,838.61

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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.