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Finding the Fourth Proportional to 74,750.54, 112,155.67 and 30,380.77

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Solution

The fourth proportional to 74,750.54, 112,155.67 and 30,380.77 is: 45,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,750.54 : 112,155.67 = 30,380.77 : x
  2. Step 2: Convert to fraction form
    74,750.54/112,155.67 = 30,380.77/x
  3. Step 3: Cross multiply
    74,750.54x = 112,155.67 × 30,380.77
  4. Step 4: Simplify right side
    74,750.54x = 3,407,375,614.47
  5. Step 5: Solve for x
    x = 3,407,375,614.47/74,750.54
  6. Step 6: Final answer
    x = 45,583.29

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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.