Home / 90,420.24-124,774.92-50,131.64

Finding the Fourth Proportional to 90,420.24, 124,774.92 and 50,131.64

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Solution

The fourth proportional to 90,420.24, 124,774.92 and 50,131.64 is: 69,178.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,420.24 : 124,774.92 = 50,131.64 : x
  2. Step 2: Convert to fraction form
    90,420.24/124,774.92 = 50,131.64/x
  3. Step 3: Cross multiply
    90,420.24x = 124,774.92 × 50,131.64
  4. Step 4: Simplify right side
    90,420.24x = 6,255,171,370.47
  5. Step 5: Solve for x
    x = 6,255,171,370.47/90,420.24
  6. Step 6: Final answer
    x = 69,178.88

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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.