Home / 81,056.25-121,584.92-25,652.25

Finding the Fourth Proportional to 81,056.25, 121,584.92 and 25,652.25

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Solution

The fourth proportional to 81,056.25, 121,584.92 and 25,652.25 is: 38,478.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,056.25 : 121,584.92 = 25,652.25 : x
  2. Step 2: Convert to fraction form
    81,056.25/121,584.92 = 25,652.25/x
  3. Step 3: Cross multiply
    81,056.25x = 121,584.92 × 25,652.25
  4. Step 4: Simplify right side
    81,056.25x = 3,118,926,635.81
  5. Step 5: Solve for x
    x = 3,118,926,635.81/81,056.25
  6. Step 6: Final answer
    x = 38,478.55

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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.