Home / 89,223.19-123,128.00-49,479.19

Finding the Fourth Proportional to 89,223.19, 123,128.00 and 49,479.19

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Solution

The fourth proportional to 89,223.19, 123,128.00 and 49,479.19 is: 68,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,223.19 : 123,128.00 = 49,479.19 : x
  2. Step 2: Convert to fraction form
    89,223.19/123,128.00 = 49,479.19/x
  3. Step 3: Cross multiply
    89,223.19x = 123,128.00 × 49,479.19
  4. Step 4: Simplify right side
    89,223.19x = 6,092,273,336.65
  5. Step 5: Solve for x
    x = 6,092,273,336.65/89,223.19
  6. Step 6: Final answer
    x = 68,281.28

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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.