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Finding the Fourth Proportional to 65,750.20, 90,713.11 and 37,435.84

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Solution

The fourth proportional to 65,750.20, 90,713.11 and 37,435.84 is: 51,648.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,750.20 : 90,713.11 = 37,435.84 : x
  2. Step 2: Convert to fraction form
    65,750.20/90,713.11 = 37,435.84/x
  3. Step 3: Cross multiply
    65,750.20x = 90,713.11 × 37,435.84
  4. Step 4: Simplify right side
    65,750.20x = 3,395,921,471.86
  5. Step 5: Solve for x
    x = 3,395,921,471.86/65,750.20
  6. Step 6: Final answer
    x = 51,648.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.