Home / 90,117.45-135,257.88-48,032.88

Finding the Fourth Proportional to 90,117.45, 135,257.88 and 48,032.88

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Solution

The fourth proportional to 90,117.45, 135,257.88 and 48,032.88 is: 72,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.45 : 135,257.88 = 48,032.88 : x
  2. Step 2: Convert to fraction form
    90,117.45/135,257.88 = 48,032.88/x
  3. Step 3: Cross multiply
    90,117.45x = 135,257.88 × 48,032.88
  4. Step 4: Simplify right side
    90,117.45x = 6,496,825,519.09
  5. Step 5: Solve for x
    x = 6,496,825,519.09/90,117.45
  6. Step 6: Final answer
    x = 72,092.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.