Home / 78,276.83-108,027.38-44,285.31

Finding the Fourth Proportional to 78,276.83, 108,027.38 and 44,285.31

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Solution

The fourth proportional to 78,276.83, 108,027.38 and 44,285.31 is: 61,116.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,276.83 : 108,027.38 = 44,285.31 : x
  2. Step 2: Convert to fraction form
    78,276.83/108,027.38 = 44,285.31/x
  3. Step 3: Cross multiply
    78,276.83x = 108,027.38 × 44,285.31
  4. Step 4: Simplify right side
    78,276.83x = 4,784,025,728.88
  5. Step 5: Solve for x
    x = 4,784,025,728.88/78,276.83
  6. Step 6: Final answer
    x = 61,116.75

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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.