Home / 55,416.08-76,469.64-31,219.04

Finding the Fourth Proportional to 55,416.08, 76,469.64 and 31,219.04

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Solution

The fourth proportional to 55,416.08, 76,469.64 and 31,219.04 is: 43,079.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416.08 : 76,469.64 = 31,219.04 : x
  2. Step 2: Convert to fraction form
    55,416.08/76,469.64 = 31,219.04/x
  3. Step 3: Cross multiply
    55,416.08x = 76,469.64 × 31,219.04
  4. Step 4: Simplify right side
    55,416.08x = 2,387,308,749.95
  5. Step 5: Solve for x
    x = 2,387,308,749.95/55,416.08
  6. Step 6: Final answer
    x = 43,079.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.