Home / 51,279.99-70,766.23-28,618.74

Finding the Fourth Proportional to 51,279.99, 70,766.23 and 28,618.74

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Solution

The fourth proportional to 51,279.99, 70,766.23 and 28,618.74 is: 39,493.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,279.99 : 70,766.23 = 28,618.74 : x
  2. Step 2: Convert to fraction form
    51,279.99/70,766.23 = 28,618.74/x
  3. Step 3: Cross multiply
    51,279.99x = 70,766.23 × 28,618.74
  4. Step 4: Simplify right side
    51,279.99x = 2,025,240,337.15
  5. Step 5: Solve for x
    x = 2,025,240,337.15/51,279.99
  6. Step 6: Final answer
    x = 39,493.77

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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.