Home / 55,192.32-76,167.36-31,320

Finding the Fourth Proportional to 55,192.32, 76,167.36 and 31,320

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Solution

The fourth proportional to 55,192.32, 76,167.36 and 31,320 is: 43,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.32 : 76,167.36 = 31,320 : x
  2. Step 2: Convert to fraction form
    55,192.32/76,167.36 = 31,320/x
  3. Step 3: Cross multiply
    55,192.32x = 76,167.36 × 31,320
  4. Step 4: Simplify right side
    55,192.32x = 2,385,561,715.20
  5. Step 5: Solve for x
    x = 2,385,561,715.20/55,192.32
  6. Step 6: Final answer
    x = 43,222.71

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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.