Home / 87,786.48-121,164.36-55,500.59

Finding the Fourth Proportional to 87,786.48, 121,164.36 and 55,500.59

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Solution

The fourth proportional to 87,786.48, 121,164.36 and 55,500.59 is: 76,602.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.48 : 121,164.36 = 55,500.59 : x
  2. Step 2: Convert to fraction form
    87,786.48/121,164.36 = 55,500.59/x
  3. Step 3: Cross multiply
    87,786.48x = 121,164.36 × 55,500.59
  4. Step 4: Simplify right side
    87,786.48x = 6,724,693,561.76
  5. Step 5: Solve for x
    x = 6,724,693,561.76/87,786.48
  6. Step 6: Final answer
    x = 76,602.84

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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.