Home / 81,014.53-121,405.96-59,498.48

Finding the Fourth Proportional to 81,014.53, 121,405.96 and 59,498.48

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Solution

The fourth proportional to 81,014.53, 121,405.96 and 59,498.48 is: 89,162.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,014.53 : 121,405.96 = 59,498.48 : x
  2. Step 2: Convert to fraction form
    81,014.53/121,405.96 = 59,498.48/x
  3. Step 3: Cross multiply
    81,014.53x = 121,405.96 × 59,498.48
  4. Step 4: Simplify right side
    81,014.53x = 7,223,469,178.42
  5. Step 5: Solve for x
    x = 7,223,469,178.42/81,014.53
  6. Step 6: Final answer
    x = 89,162.64

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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.