Home / 87,842.37-121,221.63-47,555.10

Finding the Fourth Proportional to 87,842.37, 121,221.63 and 47,555.10

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Solution

The fourth proportional to 87,842.37, 121,221.63 and 47,555.10 is: 65,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,842.37 : 121,221.63 = 47,555.10 : x
  2. Step 2: Convert to fraction form
    87,842.37/121,221.63 = 47,555.10/x
  3. Step 3: Cross multiply
    87,842.37x = 121,221.63 × 47,555.10
  4. Step 4: Simplify right side
    87,842.37x = 5,764,706,736.81
  5. Step 5: Solve for x
    x = 5,764,706,736.81/87,842.37
  6. Step 6: Final answer
    x = 65,625.58

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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.