Home / 51,388.27-70,912.91-28,722.74

Finding the Fourth Proportional to 51,388.27, 70,912.91 and 28,722.74

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Solution

The fourth proportional to 51,388.27, 70,912.91 and 28,722.74 is: 39,635.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.27 : 70,912.91 = 28,722.74 : x
  2. Step 2: Convert to fraction form
    51,388.27/70,912.91 = 28,722.74/x
  3. Step 3: Cross multiply
    51,388.27x = 70,912.91 × 28,722.74
  4. Step 4: Simplify right side
    51,388.27x = 2,036,813,325.66
  5. Step 5: Solve for x
    x = 2,036,813,325.66/51,388.27
  6. Step 6: Final answer
    x = 39,635.77

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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.