Home / 90,731.24-125,222.73-65,321.71

Finding the Fourth Proportional to 90,731.24, 125,222.73 and 65,321.71

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Solution

The fourth proportional to 90,731.24, 125,222.73 and 65,321.71 is: 90,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,731.24 : 125,222.73 = 65,321.71 : x
  2. Step 2: Convert to fraction form
    90,731.24/125,222.73 = 65,321.71/x
  3. Step 3: Cross multiply
    90,731.24x = 125,222.73 × 65,321.71
  4. Step 4: Simplify right side
    90,731.24x = 8,179,762,296.46
  5. Step 5: Solve for x
    x = 8,179,762,296.46/90,731.24
  6. Step 6: Final answer
    x = 90,153.76

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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.