Home / 90,162.12-124,422.66-49,872.72

Finding the Fourth Proportional to 90,162.12, 124,422.66 and 49,872.72

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Solution

The fourth proportional to 90,162.12, 124,422.66 and 49,872.72 is: 68,823.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,162.12 : 124,422.66 = 49,872.72 : x
  2. Step 2: Convert to fraction form
    90,162.12/124,422.66 = 49,872.72/x
  3. Step 3: Cross multiply
    90,162.12x = 124,422.66 × 49,872.72
  4. Step 4: Simplify right side
    90,162.12x = 6,205,296,483.84
  5. Step 5: Solve for x
    x = 6,205,296,483.84/90,162.12
  6. Step 6: Final answer
    x = 68,823.76

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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.