Home / 79,450.07-109,641.60-43,639.76

Finding the Fourth Proportional to 79,450.07, 109,641.60 and 43,639.76

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Solution

The fourth proportional to 79,450.07, 109,641.60 and 43,639.76 is: 60,223.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,450.07 : 109,641.60 = 43,639.76 : x
  2. Step 2: Convert to fraction form
    79,450.07/109,641.60 = 43,639.76/x
  3. Step 3: Cross multiply
    79,450.07x = 109,641.60 × 43,639.76
  4. Step 4: Simplify right side
    79,450.07x = 4,784,733,384.12
  5. Step 5: Solve for x
    x = 4,784,733,384.12/79,450.07
  6. Step 6: Final answer
    x = 60,223.15

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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.