Home / 55,212.50-76,190.96-31,338.74

Finding the Fourth Proportional to 55,212.50, 76,190.96 and 31,338.74

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Solution

The fourth proportional to 55,212.50, 76,190.96 and 31,338.74 is: 43,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.50 : 76,190.96 = 31,338.74 : x
  2. Step 2: Convert to fraction form
    55,212.50/76,190.96 = 31,338.74/x
  3. Step 3: Cross multiply
    55,212.50x = 76,190.96 × 31,338.74
  4. Step 4: Simplify right side
    55,212.50x = 2,387,728,685.79
  5. Step 5: Solve for x
    x = 2,387,728,685.79/55,212.50
  6. Step 6: Final answer
    x = 43,246.16

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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.