Home / 76,741.15-115,236.79-47,345.82

Finding the Fourth Proportional to 76,741.15, 115,236.79 and 47,345.82

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Solution

The fourth proportional to 76,741.15, 115,236.79 and 47,345.82 is: 71,095.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,741.15 : 115,236.79 = 47,345.82 : x
  2. Step 2: Convert to fraction form
    76,741.15/115,236.79 = 47,345.82/x
  3. Step 3: Cross multiply
    76,741.15x = 115,236.79 × 47,345.82
  4. Step 4: Simplify right side
    76,741.15x = 5,455,979,832.80
  5. Step 5: Solve for x
    x = 5,455,979,832.80/76,741.15
  6. Step 6: Final answer
    x = 71,095.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.