Home / 50,488.20-75,684-18,889.68

Finding the Fourth Proportional to 50,488.20, 75,684 and 18,889.68

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Solution

The fourth proportional to 50,488.20, 75,684 and 18,889.68 is: 28,316.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,488.20 : 75,684 = 18,889.68 : x
  2. Step 2: Convert to fraction form
    50,488.20/75,684 = 18,889.68/x
  3. Step 3: Cross multiply
    50,488.20x = 75,684 × 18,889.68
  4. Step 4: Simplify right side
    50,488.20x = 1,429,646,541.12
  5. Step 5: Solve for x
    x = 1,429,646,541.12/50,488.20
  6. Step 6: Final answer
    x = 28,316.45

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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.