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Finding the Fourth Proportional to 71,692.59, 98,960.38 and 43,398.28

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Solution

The fourth proportional to 71,692.59, 98,960.38 and 43,398.28 is: 59,904.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,692.59 : 98,960.38 = 43,398.28 : x
  2. Step 2: Convert to fraction form
    71,692.59/98,960.38 = 43,398.28/x
  3. Step 3: Cross multiply
    71,692.59x = 98,960.38 × 43,398.28
  4. Step 4: Simplify right side
    71,692.59x = 4,294,710,539.47
  5. Step 5: Solve for x
    x = 4,294,710,539.47/71,692.59
  6. Step 6: Final answer
    x = 59,904.52

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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.