Home / 51,340.65-70,850.34-28,680.59

Finding the Fourth Proportional to 51,340.65, 70,850.34 and 28,680.59

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Solution

The fourth proportional to 51,340.65, 70,850.34 and 28,680.59 is: 39,579.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340.65 : 70,850.34 = 28,680.59 : x
  2. Step 2: Convert to fraction form
    51,340.65/70,850.34 = 28,680.59/x
  3. Step 3: Cross multiply
    51,340.65x = 70,850.34 × 28,680.59
  4. Step 4: Simplify right side
    51,340.65x = 2,032,029,198.65
  5. Step 5: Solve for x
    x = 2,032,029,198.65/51,340.65
  6. Step 6: Final answer
    x = 39,579.34

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Half scale
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Double scale
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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.