Home / 73,429.74-109,589.22-66,343.86

Finding the Fourth Proportional to 73,429.74, 109,589.22 and 66,343.86

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Solution

The fourth proportional to 73,429.74, 109,589.22 and 66,343.86 is: 99,013.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,429.74 : 109,589.22 = 66,343.86 : x
  2. Step 2: Convert to fraction form
    73,429.74/109,589.22 = 66,343.86/x
  3. Step 3: Cross multiply
    73,429.74x = 109,589.22 × 66,343.86
  4. Step 4: Simplify right side
    73,429.74x = 7,270,571,869.19
  5. Step 5: Solve for x
    x = 7,270,571,869.19/73,429.74
  6. Step 6: Final answer
    x = 99,013.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.