Home / 81,137.19-121,711.86-25,016.34

Finding the Fourth Proportional to 81,137.19, 121,711.86 and 25,016.34

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Solution

The fourth proportional to 81,137.19, 121,711.86 and 25,016.34 is: 37,526.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,137.19 : 121,711.86 = 25,016.34 : x
  2. Step 2: Convert to fraction form
    81,137.19/121,711.86 = 25,016.34/x
  3. Step 3: Cross multiply
    81,137.19x = 121,711.86 × 25,016.34
  4. Step 4: Simplify right side
    81,137.19x = 3,044,785,271.79
  5. Step 5: Solve for x
    x = 3,044,785,271.79/81,137.19
  6. Step 6: Final answer
    x = 37,526.38

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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.