Home / 83,480.22-125,188.74-30,158.12

Finding the Fourth Proportional to 83,480.22, 125,188.74 and 30,158.12

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Solution

The fourth proportional to 83,480.22, 125,188.74 and 30,158.12 is: 45,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,480.22 : 125,188.74 = 30,158.12 : x
  2. Step 2: Convert to fraction form
    83,480.22/125,188.74 = 30,158.12/x
  3. Step 3: Cross multiply
    83,480.22x = 125,188.74 × 30,158.12
  4. Step 4: Simplify right side
    83,480.22x = 3,775,457,356.54
  5. Step 5: Solve for x
    x = 3,775,457,356.54/83,480.22
  6. Step 6: Final answer
    x = 45,225.77

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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.