Home / 90,046.23-124,271.28-49,767.86

Finding the Fourth Proportional to 90,046.23, 124,271.28 and 49,767.86

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Solution

The fourth proportional to 90,046.23, 124,271.28 and 49,767.86 is: 68,683.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,046.23 : 124,271.28 = 49,767.86 : x
  2. Step 2: Convert to fraction form
    90,046.23/124,271.28 = 49,767.86/x
  3. Step 3: Cross multiply
    90,046.23x = 124,271.28 × 49,767.86
  4. Step 4: Simplify right side
    90,046.23x = 6,184,715,665.06
  5. Step 5: Solve for x
    x = 6,184,715,665.06/90,046.23
  6. Step 6: Final answer
    x = 68,683.78

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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.