Home / 51,175.06-70,619.80-28,512.88

Finding the Fourth Proportional to 51,175.06, 70,619.80 and 28,512.88

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Solution

The fourth proportional to 51,175.06, 70,619.80 and 28,512.88 is: 39,346.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,175.06 : 70,619.80 = 28,512.88 : x
  2. Step 2: Convert to fraction form
    51,175.06/70,619.80 = 28,512.88/x
  3. Step 3: Cross multiply
    51,175.06x = 70,619.80 × 28,512.88
  4. Step 4: Simplify right side
    51,175.06x = 2,013,573,688.65
  5. Step 5: Solve for x
    x = 2,013,573,688.65/51,175.06
  6. Step 6: Final answer
    x = 39,346.78

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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.