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Finding the Fourth Proportional to 76,807.67, 115,186.58 and 29,420.24

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Solution

The fourth proportional to 76,807.67, 115,186.58 and 29,420.24 is: 44,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,807.67 : 115,186.58 = 29,420.24 : x
  2. Step 2: Convert to fraction form
    76,807.67/115,186.58 = 29,420.24/x
  3. Step 3: Cross multiply
    76,807.67x = 115,186.58 × 29,420.24
  4. Step 4: Simplify right side
    76,807.67x = 3,388,816,215.67
  5. Step 5: Solve for x
    x = 3,388,816,215.67/76,807.67
  6. Step 6: Final answer
    x = 44,120.81

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1.5x scale

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.