Home / 90,137.55-124,384.78-49,293.61

Finding the Fourth Proportional to 90,137.55, 124,384.78 and 49,293.61

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Solution

The fourth proportional to 90,137.55, 124,384.78 and 49,293.61 is: 68,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,137.55 : 124,384.78 = 49,293.61 : x
  2. Step 2: Convert to fraction form
    90,137.55/124,384.78 = 49,293.61/x
  3. Step 3: Cross multiply
    90,137.55x = 124,384.78 × 49,293.61
  4. Step 4: Simplify right side
    90,137.55x = 6,131,374,835.26
  5. Step 5: Solve for x
    x = 6,131,374,835.26/90,137.55
  6. Step 6: Final answer
    x = 68,022.43

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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.