Home / 81,095.60-121,646.71-27,824.21

Finding the Fourth Proportional to 81,095.60, 121,646.71 and 27,824.21

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Solution

The fourth proportional to 81,095.60, 121,646.71 and 27,824.21 is: 41,737.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,095.60 : 121,646.71 = 27,824.21 : x
  2. Step 2: Convert to fraction form
    81,095.60/121,646.71 = 27,824.21/x
  3. Step 3: Cross multiply
    81,095.60x = 121,646.71 × 27,824.21
  4. Step 4: Simplify right side
    81,095.60x = 3,384,723,978.53
  5. Step 5: Solve for x
    x = 3,384,723,978.53/81,095.60
  6. Step 6: Final answer
    x = 41,737.46

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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.