Home / 79,440.57-109,582.23-47,591.02

Finding the Fourth Proportional to 79,440.57, 109,582.23 and 47,591.02

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Solution

The fourth proportional to 79,440.57, 109,582.23 and 47,591.02 is: 65,648.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,440.57 : 109,582.23 = 47,591.02 : x
  2. Step 2: Convert to fraction form
    79,440.57/109,582.23 = 47,591.02/x
  3. Step 3: Cross multiply
    79,440.57x = 109,582.23 × 47,591.02
  4. Step 4: Simplify right side
    79,440.57x = 5,215,130,099.57
  5. Step 5: Solve for x
    x = 5,215,130,099.57/79,440.57
  6. Step 6: Final answer
    x = 65,648.20

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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.