Home / 79,132.10-109,203.60-43,321.52

Finding the Fourth Proportional to 79,132.10, 109,203.60 and 43,321.52

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Solution

The fourth proportional to 79,132.10, 109,203.60 and 43,321.52 is: 59,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,132.10 : 109,203.60 = 43,321.52 : x
  2. Step 2: Convert to fraction form
    79,132.10/109,203.60 = 43,321.52/x
  3. Step 3: Cross multiply
    79,132.10x = 109,203.60 × 43,321.52
  4. Step 4: Simplify right side
    79,132.10x = 4,730,865,941.47
  5. Step 5: Solve for x
    x = 4,730,865,941.47/79,132.10
  6. Step 6: Final answer
    x = 59,784.41

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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.