Home / 76,687.66-105,826.36-43,147.18

Finding the Fourth Proportional to 76,687.66, 105,826.36 and 43,147.18

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Solution

The fourth proportional to 76,687.66, 105,826.36 and 43,147.18 is: 59,541.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,687.66 : 105,826.36 = 43,147.18 : x
  2. Step 2: Convert to fraction form
    76,687.66/105,826.36 = 43,147.18/x
  3. Step 3: Cross multiply
    76,687.66x = 105,826.36 × 43,147.18
  4. Step 4: Simplify right side
    76,687.66x = 4,566,109,003.66
  5. Step 5: Solve for x
    x = 4,566,109,003.66/76,687.66
  6. Step 6: Final answer
    x = 59,541.64

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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.