Home / 51,680.29-71,322.35-28,712.88

Finding the Fourth Proportional to 51,680.29, 71,322.35 and 28,712.88

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Solution

The fourth proportional to 51,680.29, 71,322.35 and 28,712.88 is: 39,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,680.29 : 71,322.35 = 28,712.88 : x
  2. Step 2: Convert to fraction form
    51,680.29/71,322.35 = 28,712.88/x
  3. Step 3: Cross multiply
    51,680.29x = 71,322.35 × 28,712.88
  4. Step 4: Simplify right side
    51,680.29x = 2,047,870,014.06
  5. Step 5: Solve for x
    x = 2,047,870,014.06/51,680.29
  6. Step 6: Final answer
    x = 39,625.74

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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.