Home / 90,290.34-124,559.31-58,469.49

Finding the Fourth Proportional to 90,290.34, 124,559.31 and 58,469.49

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Solution

The fourth proportional to 90,290.34, 124,559.31 and 58,469.49 is: 80,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,290.34 : 124,559.31 = 58,469.49 : x
  2. Step 2: Convert to fraction form
    90,290.34/124,559.31 = 58,469.49/x
  3. Step 3: Cross multiply
    90,290.34x = 124,559.31 × 58,469.49
  4. Step 4: Simplify right side
    90,290.34x = 7,282,918,707.66
  5. Step 5: Solve for x
    x = 7,282,918,707.66/90,290.34
  6. Step 6: Final answer
    x = 80,661.11

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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.