Home / 61,665.13-85,179.56-49,611

Finding the Fourth Proportional to 61,665.13, 85,179.56 and 49,611

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Solution

The fourth proportional to 61,665.13, 85,179.56 and 49,611 is: 68,528.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,665.13 : 85,179.56 = 49,611 : x
  2. Step 2: Convert to fraction form
    61,665.13/85,179.56 = 49,611/x
  3. Step 3: Cross multiply
    61,665.13x = 85,179.56 × 49,611
  4. Step 4: Simplify right side
    61,665.13x = 4,225,842,903.11
  5. Step 5: Solve for x
    x = 4,225,842,903.11/61,665.13
  6. Step 6: Final answer
    x = 68,528.89

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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.