Home / 82,243.03-123,364.14-19,913.53

Finding the Fourth Proportional to 82,243.03, 123,364.14 and 19,913.53

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Solution

The fourth proportional to 82,243.03, 123,364.14 and 19,913.53 is: 29,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,243.03 : 123,364.14 = 19,913.53 : x
  2. Step 2: Convert to fraction form
    82,243.03/123,364.14 = 19,913.53/x
  3. Step 3: Cross multiply
    82,243.03x = 123,364.14 × 19,913.53
  4. Step 4: Simplify right side
    82,243.03x = 2,456,615,502.81
  5. Step 5: Solve for x
    x = 2,456,615,502.81/82,243.03
  6. Step 6: Final answer
    x = 29,870.20

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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.