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Finding the Fourth Proportional to 75,021.60, 103,539.60 and 43,191.84

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Solution

The fourth proportional to 75,021.60, 103,539.60 and 43,191.84 is: 59,610.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,021.60 : 103,539.60 = 43,191.84 : x
  2. Step 2: Convert to fraction form
    75,021.60/103,539.60 = 43,191.84/x
  3. Step 3: Cross multiply
    75,021.60x = 103,539.60 × 43,191.84
  4. Step 4: Simplify right side
    75,021.60x = 4,472,065,836.86
  5. Step 5: Solve for x
    x = 4,472,065,836.86/75,021.60
  6. Step 6: Final answer
    x = 59,610.38

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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.