Home / 89,892.45-134,838.77-30,728.61

Finding the Fourth Proportional to 89,892.45, 134,838.77 and 30,728.61

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Solution

The fourth proportional to 89,892.45, 134,838.77 and 30,728.61 is: 46,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,892.45 : 134,838.77 = 30,728.61 : x
  2. Step 2: Convert to fraction form
    89,892.45/134,838.77 = 30,728.61/x
  3. Step 3: Cross multiply
    89,892.45x = 134,838.77 × 30,728.61
  4. Step 4: Simplify right side
    89,892.45x = 4,143,407,822.57
  5. Step 5: Solve for x
    x = 4,143,407,822.57/89,892.45
  6. Step 6: Final answer
    x = 46,092.95

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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.