Home / 55,112.19-76,056.74-31,238.65

Finding the Fourth Proportional to 55,112.19, 76,056.74 and 31,238.65

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Solution

The fourth proportional to 55,112.19, 76,056.74 and 31,238.65 is: 43,110.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,112.19 : 76,056.74 = 31,238.65 : x
  2. Step 2: Convert to fraction form
    55,112.19/76,056.74 = 31,238.65/x
  3. Step 3: Cross multiply
    55,112.19x = 76,056.74 × 31,238.65
  4. Step 4: Simplify right side
    55,112.19x = 2,375,909,881.00
  5. Step 5: Solve for x
    x = 2,375,909,881.00/55,112.19
  6. Step 6: Final answer
    x = 43,110.42

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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.