Home / 76,814.12-115,142-29,416.26

Finding the Fourth Proportional to 76,814.12, 115,142 and 29,416.26

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Solution

The fourth proportional to 76,814.12, 115,142 and 29,416.26 is: 44,094.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,814.12 : 115,142 = 29,416.26 : x
  2. Step 2: Convert to fraction form
    76,814.12/115,142 = 29,416.26/x
  3. Step 3: Cross multiply
    76,814.12x = 115,142 × 29,416.26
  4. Step 4: Simplify right side
    76,814.12x = 3,387,047,008.92
  5. Step 5: Solve for x
    x = 3,387,047,008.92/76,814.12
  6. Step 6: Final answer
    x = 44,094.07

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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.