Home / 79,444.98-109,636.02-43,638.30

Finding the Fourth Proportional to 79,444.98, 109,636.02 and 43,638.30

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Solution

The fourth proportional to 79,444.98, 109,636.02 and 43,638.30 is: 60,221.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,444.98 : 109,636.02 = 43,638.30 : x
  2. Step 2: Convert to fraction form
    79,444.98/109,636.02 = 43,638.30/x
  3. Step 3: Cross multiply
    79,444.98x = 109,636.02 × 43,638.30
  4. Step 4: Simplify right side
    79,444.98x = 4,784,329,531.57
  5. Step 5: Solve for x
    x = 4,784,329,531.57/79,444.98
  6. Step 6: Final answer
    x = 60,221.92

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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.