Home / 49,877.39-74,772.27-20,320.08

Finding the Fourth Proportional to 49,877.39, 74,772.27 and 20,320.08

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Solution

The fourth proportional to 49,877.39, 74,772.27 and 20,320.08 is: 30,462.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,877.39 : 74,772.27 = 20,320.08 : x
  2. Step 2: Convert to fraction form
    49,877.39/74,772.27 = 20,320.08/x
  3. Step 3: Cross multiply
    49,877.39x = 74,772.27 × 20,320.08
  4. Step 4: Simplify right side
    49,877.39x = 1,519,378,508.18
  5. Step 5: Solve for x
    x = 1,519,378,508.18/49,877.39
  6. Step 6: Final answer
    x = 30,462.27

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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.