Home / 87,826.16-121,202.45-53,359.16

Finding the Fourth Proportional to 87,826.16, 121,202.45 and 53,359.16

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Solution

The fourth proportional to 87,826.16, 121,202.45 and 53,359.16 is: 73,637.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,826.16 : 121,202.45 = 53,359.16 : x
  2. Step 2: Convert to fraction form
    87,826.16/121,202.45 = 53,359.16/x
  3. Step 3: Cross multiply
    87,826.16x = 121,202.45 × 53,359.16
  4. Step 4: Simplify right side
    87,826.16x = 6,467,260,049.13
  5. Step 5: Solve for x
    x = 6,467,260,049.13/87,826.16
  6. Step 6: Final answer
    x = 73,637.06

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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.