Home / 76,512.36-105,757.74-55,439.40

Finding the Fourth Proportional to 76,512.36, 105,757.74 and 55,439.40

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Solution

The fourth proportional to 76,512.36, 105,757.74 and 55,439.40 is: 76,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,512.36 : 105,757.74 = 55,439.40 : x
  2. Step 2: Convert to fraction form
    76,512.36/105,757.74 = 55,439.40/x
  3. Step 3: Cross multiply
    76,512.36x = 105,757.74 × 55,439.40
  4. Step 4: Simplify right side
    76,512.36x = 5,863,145,650.96
  5. Step 5: Solve for x
    x = 5,863,145,650.96/76,512.36
  6. Step 6: Final answer
    x = 76,630.05

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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.