Home / 90,162.96-124,422.37-49,878.42

Finding the Fourth Proportional to 90,162.96, 124,422.37 and 49,878.42

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Solution

The fourth proportional to 90,162.96, 124,422.37 and 49,878.42 is: 68,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,162.96 : 124,422.37 = 49,878.42 : x
  2. Step 2: Convert to fraction form
    90,162.96/124,422.37 = 49,878.42/x
  3. Step 3: Cross multiply
    90,162.96x = 124,422.37 × 49,878.42
  4. Step 4: Simplify right side
    90,162.96x = 6,205,991,228.26
  5. Step 5: Solve for x
    x = 6,205,991,228.26/90,162.96
  6. Step 6: Final answer
    x = 68,830.83

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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.