Home / 90,935.92-125,488.92-50,649.72

Finding the Fourth Proportional to 90,935.92, 125,488.92 and 50,649.72

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Solution

The fourth proportional to 90,935.92, 125,488.92 and 50,649.72 is: 69,895.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,935.92 : 125,488.92 = 50,649.72 : x
  2. Step 2: Convert to fraction form
    90,935.92/125,488.92 = 50,649.72/x
  3. Step 3: Cross multiply
    90,935.92x = 125,488.92 × 50,649.72
  4. Step 4: Simplify right side
    90,935.92x = 6,355,978,661.10
  5. Step 5: Solve for x
    x = 6,355,978,661.10/90,935.92
  6. Step 6: Final answer
    x = 69,895.14

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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.