Home / 87,673.30-120,991.53-53,681.14

Finding the Fourth Proportional to 87,673.30, 120,991.53 and 53,681.14

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Solution

The fourth proportional to 87,673.30, 120,991.53 and 53,681.14 is: 74,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,673.30 : 120,991.53 = 53,681.14 : x
  2. Step 2: Convert to fraction form
    87,673.30/120,991.53 = 53,681.14/x
  3. Step 3: Cross multiply
    87,673.30x = 120,991.53 × 53,681.14
  4. Step 4: Simplify right side
    87,673.30x = 6,494,963,260.74
  5. Step 5: Solve for x
    x = 6,494,963,260.74/87,673.30
  6. Step 6: Final answer
    x = 74,081.43

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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.