Home / 81,199.57-121,823.96-36,814.41

Finding the Fourth Proportional to 81,199.57, 121,823.96 and 36,814.41

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Solution

The fourth proportional to 81,199.57, 121,823.96 and 36,814.41 is: 55,232.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,199.57 : 121,823.96 = 36,814.41 : x
  2. Step 2: Convert to fraction form
    81,199.57/121,823.96 = 36,814.41/x
  3. Step 3: Cross multiply
    81,199.57x = 121,823.96 × 36,814.41
  4. Step 4: Simplify right side
    81,199.57x = 4,484,877,211.26
  5. Step 5: Solve for x
    x = 4,484,877,211.26/81,199.57
  6. Step 6: Final answer
    x = 55,232.77

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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.