Home / 51,891.14-71,611.53-30,688.58

Finding the Fourth Proportional to 51,891.14, 71,611.53 and 30,688.58

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Solution

The fourth proportional to 51,891.14, 71,611.53 and 30,688.58 is: 42,351.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,891.14 : 71,611.53 = 30,688.58 : x
  2. Step 2: Convert to fraction form
    51,891.14/71,611.53 = 30,688.58/x
  3. Step 3: Cross multiply
    51,891.14x = 71,611.53 × 30,688.58
  4. Step 4: Simplify right side
    51,891.14x = 2,197,656,167.33
  5. Step 5: Solve for x
    x = 2,197,656,167.33/51,891.14
  6. Step 6: Final answer
    x = 42,351.28

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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.