Home / 81,310.41-112,213.07-45,500.10

Finding the Fourth Proportional to 81,310.41, 112,213.07 and 45,500.10

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Solution

The fourth proportional to 81,310.41, 112,213.07 and 45,500.10 is: 62,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,310.41 : 112,213.07 = 45,500.10 : x
  2. Step 2: Convert to fraction form
    81,310.41/112,213.07 = 45,500.10/x
  3. Step 3: Cross multiply
    81,310.41x = 112,213.07 × 45,500.10
  4. Step 4: Simplify right side
    81,310.41x = 5,105,705,678.81
  5. Step 5: Solve for x
    x = 5,105,705,678.81/81,310.41
  6. Step 6: Final answer
    x = 62,792.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.