Home / 76,713.56-105,864.66-43,180.28

Finding the Fourth Proportional to 76,713.56, 105,864.66 and 43,180.28

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Solution

The fourth proportional to 76,713.56, 105,864.66 and 43,180.28 is: 59,588.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,713.56 : 105,864.66 = 43,180.28 : x
  2. Step 2: Convert to fraction form
    76,713.56/105,864.66 = 43,180.28/x
  3. Step 3: Cross multiply
    76,713.56x = 105,864.66 × 43,180.28
  4. Step 4: Simplify right side
    76,713.56x = 4,571,265,660.90
  5. Step 5: Solve for x
    x = 4,571,265,660.90/76,713.56
  6. Step 6: Final answer
    x = 59,588.76

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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.