Home / 50,711.12-69,969.48-30,562.64

Finding the Fourth Proportional to 50,711.12, 69,969.48 and 30,562.64

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Solution

The fourth proportional to 50,711.12, 69,969.48 and 30,562.64 is: 42,169.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,711.12 : 69,969.48 = 30,562.64 : x
  2. Step 2: Convert to fraction form
    50,711.12/69,969.48 = 30,562.64/x
  3. Step 3: Cross multiply
    50,711.12x = 69,969.48 × 30,562.64
  4. Step 4: Simplify right side
    50,711.12x = 2,138,452,028.23
  5. Step 5: Solve for x
    x = 2,138,452,028.23/50,711.12
  6. Step 6: Final answer
    x = 42,169.29

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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.