Home / 90,170.10-124,435.22-49,885.28

Finding the Fourth Proportional to 90,170.10, 124,435.22 and 49,885.28

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Solution

The fourth proportional to 90,170.10, 124,435.22 and 49,885.28 is: 68,841.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,170.10 : 124,435.22 = 49,885.28 : x
  2. Step 2: Convert to fraction form
    90,170.10/124,435.22 = 49,885.28/x
  3. Step 3: Cross multiply
    90,170.10x = 124,435.22 × 49,885.28
  4. Step 4: Simplify right side
    90,170.10x = 6,207,484,919.96
  5. Step 5: Solve for x
    x = 6,207,484,919.96/90,170.10
  6. Step 6: Final answer
    x = 68,841.94

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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.