Home / 48,535.81-72,845.12-18,974.45

Finding the Fourth Proportional to 48,535.81, 72,845.12 and 18,974.45

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Solution

The fourth proportional to 48,535.81, 72,845.12 and 18,974.45 is: 28,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,535.81 : 72,845.12 = 18,974.45 : x
  2. Step 2: Convert to fraction form
    48,535.81/72,845.12 = 18,974.45/x
  3. Step 3: Cross multiply
    48,535.81x = 72,845.12 × 18,974.45
  4. Step 4: Simplify right side
    48,535.81x = 1,382,196,316.73
  5. Step 5: Solve for x
    x = 1,382,196,316.73/48,535.81
  6. Step 6: Final answer
    x = 28,477.87

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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.