Home / 90,276.64-124,580.24-49,989.54

Finding the Fourth Proportional to 90,276.64, 124,580.24 and 49,989.54

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Solution

The fourth proportional to 90,276.64, 124,580.24 and 49,989.54 is: 68,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,276.64 : 124,580.24 = 49,989.54 : x
  2. Step 2: Convert to fraction form
    90,276.64/124,580.24 = 49,989.54/x
  3. Step 3: Cross multiply
    90,276.64x = 124,580.24 × 49,989.54
  4. Step 4: Simplify right side
    90,276.64x = 6,227,708,890.69
  5. Step 5: Solve for x
    x = 6,227,708,890.69/90,276.64
  6. Step 6: Final answer
    x = 68,984.72

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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.