Home / 90,619.62-125,048.79-50,332.38

Finding the Fourth Proportional to 90,619.62, 125,048.79 and 50,332.38

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Solution

The fourth proportional to 90,619.62, 125,048.79 and 50,332.38 is: 69,455.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,619.62 : 125,048.79 = 50,332.38 : x
  2. Step 2: Convert to fraction form
    90,619.62/125,048.79 = 50,332.38/x
  3. Step 3: Cross multiply
    90,619.62x = 125,048.79 × 50,332.38
  4. Step 4: Simplify right side
    90,619.62x = 6,294,003,216.82
  5. Step 5: Solve for x
    x = 6,294,003,216.82/90,619.62
  6. Step 6: Final answer
    x = 69,455.19

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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.