Home / 90,122.49-124,364.01-49,833.84

Finding the Fourth Proportional to 90,122.49, 124,364.01 and 49,833.84

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Solution

The fourth proportional to 90,122.49, 124,364.01 and 49,833.84 is: 68,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,122.49 : 124,364.01 = 49,833.84 : x
  2. Step 2: Convert to fraction form
    90,122.49/124,364.01 = 49,833.84/x
  3. Step 3: Cross multiply
    90,122.49x = 124,364.01 × 49,833.84
  4. Step 4: Simplify right side
    90,122.49x = 6,197,536,176.10
  5. Step 5: Solve for x
    x = 6,197,536,176.10/90,122.49
  6. Step 6: Final answer
    x = 68,767.92

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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.