Home / 55,023.20-75,933.86-30,825.21

Finding the Fourth Proportional to 55,023.20, 75,933.86 and 30,825.21

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Solution

The fourth proportional to 55,023.20, 75,933.86 and 30,825.21 is: 42,539.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,023.20 : 75,933.86 = 30,825.21 : x
  2. Step 2: Convert to fraction form
    55,023.20/75,933.86 = 30,825.21/x
  3. Step 3: Cross multiply
    55,023.20x = 75,933.86 × 30,825.21
  4. Step 4: Simplify right side
    55,023.20x = 2,340,676,884.11
  5. Step 5: Solve for x
    x = 2,340,676,884.11/55,023.20
  6. Step 6: Final answer
    x = 42,539.82

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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.