Home / 55,079.94-76,014.09-31,206.81

Finding the Fourth Proportional to 55,079.94, 76,014.09 and 31,206.81

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Solution

The fourth proportional to 55,079.94, 76,014.09 and 31,206.81 is: 43,067.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.94 : 76,014.09 = 31,206.81 : x
  2. Step 2: Convert to fraction form
    55,079.94/76,014.09 = 31,206.81/x
  3. Step 3: Cross multiply
    55,079.94x = 76,014.09 × 31,206.81
  4. Step 4: Simplify right side
    55,079.94x = 2,372,157,263.95
  5. Step 5: Solve for x
    x = 2,372,157,263.95/55,079.94
  6. Step 6: Final answer
    x = 43,067.54

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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.