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Finding the Fourth Proportional to 50,670.36, 69,923.72 and 28,007.76

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Solution

The fourth proportional to 50,670.36, 69,923.72 and 28,007.76 is: 38,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,670.36 : 69,923.72 = 28,007.76 : x
  2. Step 2: Convert to fraction form
    50,670.36/69,923.72 = 28,007.76/x
  3. Step 3: Cross multiply
    50,670.36x = 69,923.72 × 28,007.76
  4. Step 4: Simplify right side
    50,670.36x = 1,958,406,768.07
  5. Step 5: Solve for x
    x = 1,958,406,768.07/50,670.36
  6. Step 6: Final answer
    x = 38,649.95

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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.