Home / 50,020.80-74,930.40-31,243.20

Finding the Fourth Proportional to 50,020.80, 74,930.40 and 31,243.20

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Solution

The fourth proportional to 50,020.80, 74,930.40 and 31,243.20 is: 46,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,020.80 : 74,930.40 = 31,243.20 : x
  2. Step 2: Convert to fraction form
    50,020.80/74,930.40 = 31,243.20/x
  3. Step 3: Cross multiply
    50,020.80x = 74,930.40 × 31,243.20
  4. Step 4: Simplify right side
    50,020.80x = 2,341,065,473.28
  5. Step 5: Solve for x
    x = 2,341,065,473.28/50,020.80
  6. Step 6: Final answer
    x = 46,801.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.