Home / 51,042.02-70,419.31-30,891.56

Finding the Fourth Proportional to 51,042.02, 70,419.31 and 30,891.56

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Solution

The fourth proportional to 51,042.02, 70,419.31 and 30,891.56 is: 42,619.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.02 : 70,419.31 = 30,891.56 : x
  2. Step 2: Convert to fraction form
    51,042.02/70,419.31 = 30,891.56/x
  3. Step 3: Cross multiply
    51,042.02x = 70,419.31 × 30,891.56
  4. Step 4: Simplify right side
    51,042.02x = 2,175,361,910.70
  5. Step 5: Solve for x
    x = 2,175,361,910.70/51,042.02
  6. Step 6: Final answer
    x = 42,619.04

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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.