Home / 76,742.15-115,238.29-47,346.82

Finding the Fourth Proportional to 76,742.15, 115,238.29 and 47,346.82

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Solution

The fourth proportional to 76,742.15, 115,238.29 and 47,346.82 is: 71,097.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,742.15 : 115,238.29 = 47,346.82 : x
  2. Step 2: Convert to fraction form
    76,742.15/115,238.29 = 47,346.82/x
  3. Step 3: Cross multiply
    76,742.15x = 115,238.29 × 47,346.82
  4. Step 4: Simplify right side
    76,742.15x = 5,456,166,573.74
  5. Step 5: Solve for x
    x = 5,456,166,573.74/76,742.15
  6. Step 6: Final answer
    x = 71,097.39

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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.