Home / 49,821.12-68,749.70-28,020.66

Finding the Fourth Proportional to 49,821.12, 68,749.70 and 28,020.66

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Solution

The fourth proportional to 49,821.12, 68,749.70 and 28,020.66 is: 38,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,821.12 : 68,749.70 = 28,020.66 : x
  2. Step 2: Convert to fraction form
    49,821.12/68,749.70 = 28,020.66/x
  3. Step 3: Cross multiply
    49,821.12x = 68,749.70 × 28,020.66
  4. Step 4: Simplify right side
    49,821.12x = 1,926,411,968.80
  5. Step 5: Solve for x
    x = 1,926,411,968.80/49,821.12
  6. Step 6: Final answer
    x = 38,666.57

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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.