Home / 47,879.92-66,084.32-28,760.56

Finding the Fourth Proportional to 47,879.92, 66,084.32 and 28,760.56

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Solution

The fourth proportional to 47,879.92, 66,084.32 and 28,760.56 is: 39,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,879.92 : 66,084.32 = 28,760.56 : x
  2. Step 2: Convert to fraction form
    47,879.92/66,084.32 = 28,760.56/x
  3. Step 3: Cross multiply
    47,879.92x = 66,084.32 × 28,760.56
  4. Step 4: Simplify right side
    47,879.92x = 1,900,622,050.42
  5. Step 5: Solve for x
    x = 1,900,622,050.42/47,879.92
  6. Step 6: Final answer
    x = 39,695.60

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1.5x scale

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.