Home / 74,241.49-111,378.62-21,655.09

Finding the Fourth Proportional to 74,241.49, 111,378.62 and 21,655.09

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Solution

The fourth proportional to 74,241.49, 111,378.62 and 21,655.09 is: 32,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,241.49 : 111,378.62 = 21,655.09 : x
  2. Step 2: Convert to fraction form
    74,241.49/111,378.62 = 21,655.09/x
  3. Step 3: Cross multiply
    74,241.49x = 111,378.62 × 21,655.09
  4. Step 4: Simplify right side
    74,241.49x = 2,411,913,931.90
  5. Step 5: Solve for x
    x = 2,411,913,931.90/74,241.49
  6. Step 6: Final answer
    x = 32,487.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.