Home / 79,406.56-109,589.75-45,418.15

Finding the Fourth Proportional to 79,406.56, 109,589.75 and 45,418.15

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Solution

The fourth proportional to 79,406.56, 109,589.75 and 45,418.15 is: 62,682.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,406.56 : 109,589.75 = 45,418.15 : x
  2. Step 2: Convert to fraction form
    79,406.56/109,589.75 = 45,418.15/x
  3. Step 3: Cross multiply
    79,406.56x = 109,589.75 × 45,418.15
  4. Step 4: Simplify right side
    79,406.56x = 4,977,363,703.96
  5. Step 5: Solve for x
    x = 4,977,363,703.96/79,406.56
  6. Step 6: Final answer
    x = 62,682.02

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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.