Home / 90,099.24-124,330.85-49,807.56

Finding the Fourth Proportional to 90,099.24, 124,330.85 and 49,807.56

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Solution

The fourth proportional to 90,099.24, 124,330.85 and 49,807.56 is: 68,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,099.24 : 124,330.85 = 49,807.56 : x
  2. Step 2: Convert to fraction form
    90,099.24/124,330.85 = 49,807.56/x
  3. Step 3: Cross multiply
    90,099.24x = 124,330.85 × 49,807.56
  4. Step 4: Simplify right side
    90,099.24x = 6,192,615,975.85
  5. Step 5: Solve for x
    x = 6,192,615,975.85/90,099.24
  6. Step 6: Final answer
    x = 68,731.06

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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.