Home / 90,004.54-124,205.76-49,721.08

Finding the Fourth Proportional to 90,004.54, 124,205.76 and 49,721.08

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Solution

The fourth proportional to 90,004.54, 124,205.76 and 49,721.08 is: 68,614.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,004.54 : 124,205.76 = 49,721.08 : x
  2. Step 2: Convert to fraction form
    90,004.54/124,205.76 = 49,721.08/x
  3. Step 3: Cross multiply
    90,004.54x = 124,205.76 × 49,721.08
  4. Step 4: Simplify right side
    90,004.54x = 6,175,644,529.42
  5. Step 5: Solve for x
    x = 6,175,644,529.42/90,004.54
  6. Step 6: Final answer
    x = 68,614.81

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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.