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Finding the Fourth Proportional to 79,573.34, 109,808.15 and 43,761.21

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Solution

The fourth proportional to 79,573.34, 109,808.15 and 43,761.21 is: 60,388.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,573.34 : 109,808.15 = 43,761.21 : x
  2. Step 2: Convert to fraction form
    79,573.34/109,808.15 = 43,761.21/x
  3. Step 3: Cross multiply
    79,573.34x = 109,808.15 × 43,761.21
  4. Step 4: Simplify right side
    79,573.34x = 4,805,337,402.46
  5. Step 5: Solve for x
    x = 4,805,337,402.46/79,573.34
  6. Step 6: Final answer
    x = 60,388.79

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1.5x scale

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.