Home / 92,720.19-139,078.85-37,314.75

Finding the Fourth Proportional to 92,720.19, 139,078.85 and 37,314.75

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Solution

The fourth proportional to 92,720.19, 139,078.85 and 37,314.75 is: 55,971.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,720.19 : 139,078.85 = 37,314.75 : x
  2. Step 2: Convert to fraction form
    92,720.19/139,078.85 = 37,314.75/x
  3. Step 3: Cross multiply
    92,720.19x = 139,078.85 × 37,314.75
  4. Step 4: Simplify right side
    92,720.19x = 5,189,692,331.46
  5. Step 5: Solve for x
    x = 5,189,692,331.46/92,720.19
  6. Step 6: Final answer
    x = 55,971.55

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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.