Home / 81,041.82-121,567.05-25,633.50

Finding the Fourth Proportional to 81,041.82, 121,567.05 and 25,633.50

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Solution

The fourth proportional to 81,041.82, 121,567.05 and 25,633.50 is: 38,451.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,041.82 : 121,567.05 = 25,633.50 : x
  2. Step 2: Convert to fraction form
    81,041.82/121,567.05 = 25,633.50/x
  3. Step 3: Cross multiply
    81,041.82x = 121,567.05 × 25,633.50
  4. Step 4: Simplify right side
    81,041.82x = 3,116,188,976.18
  5. Step 5: Solve for x
    x = 3,116,188,976.18/81,041.82
  6. Step 6: Final answer
    x = 38,451.62

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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.