Home / 55,099.20-76,050.72-31,240.20

Finding the Fourth Proportional to 55,099.20, 76,050.72 and 31,240.20

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Solution

The fourth proportional to 55,099.20, 76,050.72 and 31,240.20 is: 43,119.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,099.20 : 76,050.72 = 31,240.20 : x
  2. Step 2: Convert to fraction form
    55,099.20/76,050.72 = 31,240.20/x
  3. Step 3: Cross multiply
    55,099.20x = 76,050.72 × 31,240.20
  4. Step 4: Simplify right side
    55,099.20x = 2,375,839,702.94
  5. Step 5: Solve for x
    x = 2,375,839,702.94/55,099.20
  6. Step 6: Final answer
    x = 43,119.31

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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.