Home / 83,021.13-124,616.43-60,768.40

Finding the Fourth Proportional to 83,021.13, 124,616.43 and 60,768.40

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Solution

The fourth proportional to 83,021.13, 124,616.43 and 60,768.40 is: 91,214.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,021.13 : 124,616.43 = 60,768.40 : x
  2. Step 2: Convert to fraction form
    83,021.13/124,616.43 = 60,768.40/x
  3. Step 3: Cross multiply
    83,021.13x = 124,616.43 × 60,768.40
  4. Step 4: Simplify right side
    83,021.13x = 7,572,741,064.81
  5. Step 5: Solve for x
    x = 7,572,741,064.81/83,021.13
  6. Step 6: Final answer
    x = 91,214.62

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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.