Home / 72,857.41-109,281.09-44,781.80

Finding the Fourth Proportional to 72,857.41, 109,281.09 and 44,781.80

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Solution

The fourth proportional to 72,857.41, 109,281.09 and 44,781.80 is: 67,169.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,857.41 : 109,281.09 = 44,781.80 : x
  2. Step 2: Convert to fraction form
    72,857.41/109,281.09 = 44,781.80/x
  3. Step 3: Cross multiply
    72,857.41x = 109,281.09 × 44,781.80
  4. Step 4: Simplify right side
    72,857.41x = 4,893,803,369.76
  5. Step 5: Solve for x
    x = 4,893,803,369.76/72,857.41
  6. Step 6: Final answer
    x = 67,169.61

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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.