Home / 79,620.06-109,880.33-45,639.08

Finding the Fourth Proportional to 79,620.06, 109,880.33 and 45,639.08

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Solution

The fourth proportional to 79,620.06, 109,880.33 and 45,639.08 is: 62,984.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.06 : 109,880.33 = 45,639.08 : x
  2. Step 2: Convert to fraction form
    79,620.06/109,880.33 = 45,639.08/x
  3. Step 3: Cross multiply
    79,620.06x = 109,880.33 × 45,639.08
  4. Step 4: Simplify right side
    79,620.06x = 5,014,836,621.89
  5. Step 5: Solve for x
    x = 5,014,836,621.89/79,620.06
  6. Step 6: Final answer
    x = 62,984.59

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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.