Home / 49,028.80-73,543.20-19,431.40

Finding the Fourth Proportional to 49,028.80, 73,543.20 and 19,431.40

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Solution

The fourth proportional to 49,028.80, 73,543.20 and 19,431.40 is: 29,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,028.80 : 73,543.20 = 19,431.40 : x
  2. Step 2: Convert to fraction form
    49,028.80/73,543.20 = 19,431.40/x
  3. Step 3: Cross multiply
    49,028.80x = 73,543.20 × 19,431.40
  4. Step 4: Simplify right side
    49,028.80x = 1,429,047,336.48
  5. Step 5: Solve for x
    x = 1,429,047,336.48/49,028.80
  6. Step 6: Final answer
    x = 29,147.10

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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.