Home / 50,689.08-69,933.60-30,538.35

Finding the Fourth Proportional to 50,689.08, 69,933.60 and 30,538.35

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Solution

The fourth proportional to 50,689.08, 69,933.60 and 30,538.35 is: 42,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,689.08 : 69,933.60 = 30,538.35 : x
  2. Step 2: Convert to fraction form
    50,689.08/69,933.60 = 30,538.35/x
  3. Step 3: Cross multiply
    50,689.08x = 69,933.60 × 30,538.35
  4. Step 4: Simplify right side
    50,689.08x = 2,135,656,753.56
  5. Step 5: Solve for x
    x = 2,135,656,753.56/50,689.08
  6. Step 6: Final answer
    x = 42,132.48

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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.