Home / 77,490.32-106,909.13-50,648.32

Finding the Fourth Proportional to 77,490.32, 106,909.13 and 50,648.32

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Solution

The fourth proportional to 77,490.32, 106,909.13 and 50,648.32 is: 69,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,490.32 : 106,909.13 = 50,648.32 : x
  2. Step 2: Convert to fraction form
    77,490.32/106,909.13 = 50,648.32/x
  3. Step 3: Cross multiply
    77,490.32x = 106,909.13 × 50,648.32
  4. Step 4: Simplify right side
    77,490.32x = 5,414,768,087.42
  5. Step 5: Solve for x
    x = 5,414,768,087.42/77,490.32
  6. Step 6: Final answer
    x = 69,876.71

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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.