Home / 79,515.45-109,729.45-43,216.04

Finding the Fourth Proportional to 79,515.45, 109,729.45 and 43,216.04

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Solution

The fourth proportional to 79,515.45, 109,729.45 and 43,216.04 is: 59,637.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,515.45 : 109,729.45 = 43,216.04 : x
  2. Step 2: Convert to fraction form
    79,515.45/109,729.45 = 43,216.04/x
  3. Step 3: Cross multiply
    79,515.45x = 109,729.45 × 43,216.04
  4. Step 4: Simplify right side
    79,515.45x = 4,742,072,628.72
  5. Step 5: Solve for x
    x = 4,742,072,628.72/79,515.45
  6. Step 6: Final answer
    x = 59,637.12

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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.