Home / 81,102.69-121,508.24-49,496.29

Finding the Fourth Proportional to 81,102.69, 121,508.24 and 49,496.29

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Solution

The fourth proportional to 81,102.69, 121,508.24 and 49,496.29 is: 74,155.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,102.69 : 121,508.24 = 49,496.29 : x
  2. Step 2: Convert to fraction form
    81,102.69/121,508.24 = 49,496.29/x
  3. Step 3: Cross multiply
    81,102.69x = 121,508.24 × 49,496.29
  4. Step 4: Simplify right side
    81,102.69x = 6,014,206,533.18
  5. Step 5: Solve for x
    x = 6,014,206,533.18/81,102.69
  6. Step 6: Final answer
    x = 74,155.45

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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.