Home / 51,605.90-71,222.73-30,387.14

Finding the Fourth Proportional to 51,605.90, 71,222.73 and 30,387.14

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Solution

The fourth proportional to 51,605.90, 71,222.73 and 30,387.14 is: 41,938.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,605.90 : 71,222.73 = 30,387.14 : x
  2. Step 2: Convert to fraction form
    51,605.90/71,222.73 = 30,387.14/x
  3. Step 3: Cross multiply
    51,605.90x = 71,222.73 × 30,387.14
  4. Step 4: Simplify right side
    51,605.90x = 2,164,255,067.69
  5. Step 5: Solve for x
    x = 2,164,255,067.69/51,605.90
  6. Step 6: Final answer
    x = 41,938.13

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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.