Home / 81,260.77-121,904.15-25,087.68

Finding the Fourth Proportional to 81,260.77, 121,904.15 and 25,087.68

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Solution

The fourth proportional to 81,260.77, 121,904.15 and 25,087.68 is: 37,635.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,260.77 : 121,904.15 = 25,087.68 : x
  2. Step 2: Convert to fraction form
    81,260.77/121,904.15 = 25,087.68/x
  3. Step 3: Cross multiply
    81,260.77x = 121,904.15 × 25,087.68
  4. Step 4: Simplify right side
    81,260.77x = 3,058,291,723.29
  5. Step 5: Solve for x
    x = 3,058,291,723.29/81,260.77
  6. Step 6: Final answer
    x = 37,635.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.