Home / 90,108.56-124,338.96-49,816.88

Finding the Fourth Proportional to 90,108.56, 124,338.96 and 49,816.88

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Solution

The fourth proportional to 90,108.56, 124,338.96 and 49,816.88 is: 68,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.56 : 124,338.96 = 49,816.88 : x
  2. Step 2: Convert to fraction form
    90,108.56/124,338.96 = 49,816.88/x
  3. Step 3: Cross multiply
    90,108.56x = 124,338.96 × 49,816.88
  4. Step 4: Simplify right side
    90,108.56x = 6,194,179,049.64
  5. Step 5: Solve for x
    x = 6,194,179,049.64/90,108.56
  6. Step 6: Final answer
    x = 68,741.29

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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.