Home / 89,983.20-124,178-49,696.84

Finding the Fourth Proportional to 89,983.20, 124,178 and 49,696.84

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Solution

The fourth proportional to 89,983.20, 124,178 and 49,696.84 is: 68,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,983.20 : 124,178 = 49,696.84 : x
  2. Step 2: Convert to fraction form
    89,983.20/124,178 = 49,696.84/x
  3. Step 3: Cross multiply
    89,983.20x = 124,178 × 49,696.84
  4. Step 4: Simplify right side
    89,983.20x = 6,171,254,197.52
  5. Step 5: Solve for x
    x = 6,171,254,197.52/89,983.20
  6. Step 6: Final answer
    x = 68,582.29

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1.5x scale

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.