Home / 50,974.45-70,342.36-28,314.90

Finding the Fourth Proportional to 50,974.45, 70,342.36 and 28,314.90

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Solution

The fourth proportional to 50,974.45, 70,342.36 and 28,314.90 is: 39,073.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,974.45 : 70,342.36 = 28,314.90 : x
  2. Step 2: Convert to fraction form
    50,974.45/70,342.36 = 28,314.90/x
  3. Step 3: Cross multiply
    50,974.45x = 70,342.36 × 28,314.90
  4. Step 4: Simplify right side
    50,974.45x = 1,991,736,818.38
  5. Step 5: Solve for x
    x = 1,991,736,818.38/50,974.45
  6. Step 6: Final answer
    x = 39,073.24

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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.