Home / 91,577.43-137,120.09-58,116.33

Finding the Fourth Proportional to 91,577.43, 137,120.09 and 58,116.33

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Solution

The fourth proportional to 91,577.43, 137,120.09 and 58,116.33 is: 87,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,577.43 : 137,120.09 = 58,116.33 : x
  2. Step 2: Convert to fraction form
    91,577.43/137,120.09 = 58,116.33/x
  3. Step 3: Cross multiply
    91,577.43x = 137,120.09 × 58,116.33
  4. Step 4: Simplify right side
    91,577.43x = 7,968,916,109.49
  5. Step 5: Solve for x
    x = 7,968,916,109.49/91,577.43
  6. Step 6: Final answer
    x = 87,018.34

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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.