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Finding the Fourth Proportional to 75,270.57, 112,905.90 and 19,114.89

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Solution

The fourth proportional to 75,270.57, 112,905.90 and 19,114.89 is: 28,672.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,270.57 : 112,905.90 = 19,114.89 : x
  2. Step 2: Convert to fraction form
    75,270.57/112,905.90 = 19,114.89/x
  3. Step 3: Cross multiply
    75,270.57x = 112,905.90 × 19,114.89
  4. Step 4: Simplify right side
    75,270.57x = 2,158,183,198.75
  5. Step 5: Solve for x
    x = 2,158,183,198.75/75,270.57
  6. Step 6: Final answer
    x = 28,672.34

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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.