Home / 51,076.32-70,487.01-28,107.05

Finding the Fourth Proportional to 51,076.32, 70,487.01 and 28,107.05

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Solution

The fourth proportional to 51,076.32, 70,487.01 and 28,107.05 is: 38,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,076.32 : 70,487.01 = 28,107.05 : x
  2. Step 2: Convert to fraction form
    51,076.32/70,487.01 = 28,107.05/x
  3. Step 3: Cross multiply
    51,076.32x = 70,487.01 × 28,107.05
  4. Step 4: Simplify right side
    51,076.32x = 1,981,181,958.47
  5. Step 5: Solve for x
    x = 1,981,181,958.47/51,076.32
  6. Step 6: Final answer
    x = 38,788.66

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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.