Home / 81,698.04-122,652-62,989.96

Finding the Fourth Proportional to 81,698.04, 122,652 and 62,989.96

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Solution

The fourth proportional to 81,698.04, 122,652 and 62,989.96 is: 94,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,698.04 : 122,652 = 62,989.96 : x
  2. Step 2: Convert to fraction form
    81,698.04/122,652 = 62,989.96/x
  3. Step 3: Cross multiply
    81,698.04x = 122,652 × 62,989.96
  4. Step 4: Simplify right side
    81,698.04x = 7,725,843,960.66
  5. Step 5: Solve for x
    x = 7,725,843,960.66/81,698.04
  6. Step 6: Final answer
    x = 94,565.85

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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.