Home / 87,561.29-120,812.29-53,557.37

Finding the Fourth Proportional to 87,561.29, 120,812.29 and 53,557.37

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Solution

The fourth proportional to 87,561.29, 120,812.29 and 53,557.37 is: 73,895.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,561.29 : 120,812.29 = 53,557.37 : x
  2. Step 2: Convert to fraction form
    87,561.29/120,812.29 = 53,557.37/x
  3. Step 3: Cross multiply
    87,561.29x = 120,812.29 × 53,557.37
  4. Step 4: Simplify right side
    87,561.29x = 6,470,388,228.00
  5. Step 5: Solve for x
    x = 6,470,388,228.00/87,561.29
  6. Step 6: Final answer
    x = 73,895.54

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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.