Home / 51,506.89-71,078.52-30,000.58

Finding the Fourth Proportional to 51,506.89, 71,078.52 and 30,000.58

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Solution

The fourth proportional to 51,506.89, 71,078.52 and 30,000.58 is: 41,400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,506.89 : 71,078.52 = 30,000.58 : x
  2. Step 2: Convert to fraction form
    51,506.89/71,078.52 = 30,000.58/x
  3. Step 3: Cross multiply
    51,506.89x = 71,078.52 × 30,000.58
  4. Step 4: Simplify right side
    51,506.89x = 2,132,396,825.54
  5. Step 5: Solve for x
    x = 2,132,396,825.54/51,506.89
  6. Step 6: Final answer
    x = 41,400.22

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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.