Home / 50,710.28-75,967.68-28,455.80

Finding the Fourth Proportional to 50,710.28, 75,967.68 and 28,455.80

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Solution

The fourth proportional to 50,710.28, 75,967.68 and 28,455.80 is: 42,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,710.28 : 75,967.68 = 28,455.80 : x
  2. Step 2: Convert to fraction form
    50,710.28/75,967.68 = 28,455.80/x
  3. Step 3: Cross multiply
    50,710.28x = 75,967.68 × 28,455.80
  4. Step 4: Simplify right side
    50,710.28x = 2,161,721,108.54
  5. Step 5: Solve for x
    x = 2,161,721,108.54/50,710.28
  6. Step 6: Final answer
    x = 42,628.85

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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.