Home / 79,002.56-109,025.25-47,165.51

Finding the Fourth Proportional to 79,002.56, 109,025.25 and 47,165.51

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Solution

The fourth proportional to 79,002.56, 109,025.25 and 47,165.51 is: 65,089.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,002.56 : 109,025.25 = 47,165.51 : x
  2. Step 2: Convert to fraction form
    79,002.56/109,025.25 = 47,165.51/x
  3. Step 3: Cross multiply
    79,002.56x = 109,025.25 × 47,165.51
  4. Step 4: Simplify right side
    79,002.56x = 5,142,231,519.13
  5. Step 5: Solve for x
    x = 5,142,231,519.13/79,002.56
  6. Step 6: Final answer
    x = 65,089.43

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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.