Home / 55,109.30-76,051.70-31,235.46

Finding the Fourth Proportional to 55,109.30, 76,051.70 and 31,235.46

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Solution

The fourth proportional to 55,109.30, 76,051.70 and 31,235.46 is: 43,105.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,109.30 : 76,051.70 = 31,235.46 : x
  2. Step 2: Convert to fraction form
    55,109.30/76,051.70 = 31,235.46/x
  3. Step 3: Cross multiply
    55,109.30x = 76,051.70 × 31,235.46
  4. Step 4: Simplify right side
    55,109.30x = 2,375,509,833.28
  5. Step 5: Solve for x
    x = 2,375,509,833.28/55,109.30
  6. Step 6: Final answer
    x = 43,105.43

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1.5x scale

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.