Home / 55,144.94-76,117.32-31,287.46

Finding the Fourth Proportional to 55,144.94, 76,117.32 and 31,287.46

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Solution

The fourth proportional to 55,144.94, 76,117.32 and 31,287.46 is: 43,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,144.94 : 76,117.32 = 31,287.46 : x
  2. Step 2: Convert to fraction form
    55,144.94/76,117.32 = 31,287.46/x
  3. Step 3: Cross multiply
    55,144.94x = 76,117.32 × 31,287.46
  4. Step 4: Simplify right side
    55,144.94x = 2,381,517,604.81
  5. Step 5: Solve for x
    x = 2,381,517,604.81/55,144.94
  6. Step 6: Final answer
    x = 43,186.51

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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.