Home / 97,912.30-135,114.24-55,471

Finding the Fourth Proportional to 97,912.30, 135,114.24 and 55,471

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Solution

The fourth proportional to 97,912.30, 135,114.24 and 55,471 is: 76,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,912.30 : 135,114.24 = 55,471 : x
  2. Step 2: Convert to fraction form
    97,912.30/135,114.24 = 55,471/x
  3. Step 3: Cross multiply
    97,912.30x = 135,114.24 × 55,471
  4. Step 4: Simplify right side
    97,912.30x = 7,494,922,007.04
  5. Step 5: Solve for x
    x = 7,494,922,007.04/97,912.30
  6. Step 6: Final answer
    x = 76,547.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.