Home / 76,837.80-115,329.60-47,313.30

Finding the Fourth Proportional to 76,837.80, 115,329.60 and 47,313.30

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Solution

The fourth proportional to 76,837.80, 115,329.60 and 47,313.30 is: 71,014.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,837.80 : 115,329.60 = 47,313.30 : x
  2. Step 2: Convert to fraction form
    76,837.80/115,329.60 = 47,313.30/x
  3. Step 3: Cross multiply
    76,837.80x = 115,329.60 × 47,313.30
  4. Step 4: Simplify right side
    76,837.80x = 5,456,623,963.68
  5. Step 5: Solve for x
    x = 5,456,623,963.68/76,837.80
  6. Step 6: Final answer
    x = 71,014.84

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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.