Home / 90,190.40-135,137.84-48,025.71

Finding the Fourth Proportional to 90,190.40, 135,137.84 and 48,025.71

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Solution

The fourth proportional to 90,190.40, 135,137.84 and 48,025.71 is: 71,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.40 : 135,137.84 = 48,025.71 : x
  2. Step 2: Convert to fraction form
    90,190.40/135,137.84 = 48,025.71/x
  3. Step 3: Cross multiply
    90,190.40x = 135,137.84 × 48,025.71
  4. Step 4: Simplify right side
    90,190.40x = 6,490,090,473.74
  5. Step 5: Solve for x
    x = 6,490,090,473.74/90,190.40
  6. Step 6: Final answer
    x = 71,959.89

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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.