Home / 79,239.32-109,349.34-42,940.04

Finding the Fourth Proportional to 79,239.32, 109,349.34 and 42,940.04

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Solution

The fourth proportional to 79,239.32, 109,349.34 and 42,940.04 is: 59,256.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,239.32 : 109,349.34 = 42,940.04 : x
  2. Step 2: Convert to fraction form
    79,239.32/109,349.34 = 42,940.04/x
  3. Step 3: Cross multiply
    79,239.32x = 109,349.34 × 42,940.04
  4. Step 4: Simplify right side
    79,239.32x = 4,695,465,033.57
  5. Step 5: Solve for x
    x = 4,695,465,033.57/79,239.32
  6. Step 6: Final answer
    x = 59,256.76

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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.