Home / 50,428.80-75,643.20-30,697.20

Finding the Fourth Proportional to 50,428.80, 75,643.20 and 30,697.20

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Solution

The fourth proportional to 50,428.80, 75,643.20 and 30,697.20 is: 46,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,428.80 : 75,643.20 = 30,697.20 : x
  2. Step 2: Convert to fraction form
    50,428.80/75,643.20 = 30,697.20/x
  3. Step 3: Cross multiply
    50,428.80x = 75,643.20 × 30,697.20
  4. Step 4: Simplify right side
    50,428.80x = 2,322,034,439.04
  5. Step 5: Solve for x
    x = 2,322,034,439.04/50,428.80
  6. Step 6: Final answer
    x = 46,045.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.