Home / 81,254.52-121,898.18-47,998.44

Finding the Fourth Proportional to 81,254.52, 121,898.18 and 47,998.44

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Solution

The fourth proportional to 81,254.52, 121,898.18 and 47,998.44 is: 72,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,254.52 : 121,898.18 = 47,998.44 : x
  2. Step 2: Convert to fraction form
    81,254.52/121,898.18 = 47,998.44/x
  3. Step 3: Cross multiply
    81,254.52x = 121,898.18 × 47,998.44
  4. Step 4: Simplify right side
    81,254.52x = 5,850,922,478.84
  5. Step 5: Solve for x
    x = 5,850,922,478.84/81,254.52
  6. Step 6: Final answer
    x = 72,007.35

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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.