Home / 47,874.93-66,077.42-28,755.54

Finding the Fourth Proportional to 47,874.93, 66,077.42 and 28,755.54

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Solution

The fourth proportional to 47,874.93, 66,077.42 and 28,755.54 is: 39,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,874.93 : 66,077.42 = 28,755.54 : x
  2. Step 2: Convert to fraction form
    47,874.93/66,077.42 = 28,755.54/x
  3. Step 3: Cross multiply
    47,874.93x = 66,077.42 × 28,755.54
  4. Step 4: Simplify right side
    47,874.93x = 1,900,091,750.13
  5. Step 5: Solve for x
    x = 1,900,091,750.13/47,874.93
  6. Step 6: Final answer
    x = 39,688.66

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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.