Home / 72,899.38-108,949.64-53,219.38

Finding the Fourth Proportional to 72,899.38, 108,949.64 and 53,219.38

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Solution

The fourth proportional to 72,899.38, 108,949.64 and 53,219.38 is: 79,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,899.38 : 108,949.64 = 53,219.38 : x
  2. Step 2: Convert to fraction form
    72,899.38/108,949.64 = 53,219.38/x
  3. Step 3: Cross multiply
    72,899.38x = 108,949.64 × 53,219.38
  4. Step 4: Simplify right side
    72,899.38x = 5,798,232,292.02
  5. Step 5: Solve for x
    x = 5,798,232,292.02/72,899.38
  6. Step 6: Final answer
    x = 79,537.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.