Home / 90,106.09-124,344.20-49,818.83

Finding the Fourth Proportional to 90,106.09, 124,344.20 and 49,818.83

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Solution

The fourth proportional to 90,106.09, 124,344.20 and 49,818.83 is: 68,748.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.09 : 124,344.20 = 49,818.83 : x
  2. Step 2: Convert to fraction form
    90,106.09/124,344.20 = 49,818.83/x
  3. Step 3: Cross multiply
    90,106.09x = 124,344.20 × 49,818.83
  4. Step 4: Simplify right side
    90,106.09x = 6,194,682,064.11
  5. Step 5: Solve for x
    x = 6,194,682,064.11/90,106.09
  6. Step 6: Final answer
    x = 68,748.76

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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.