Home / 90,964.20-136,464.72-38,373.60

Finding the Fourth Proportional to 90,964.20, 136,464.72 and 38,373.60

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Solution

The fourth proportional to 90,964.20, 136,464.72 and 38,373.60 is: 57,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,964.20 : 136,464.72 = 38,373.60 : x
  2. Step 2: Convert to fraction form
    90,964.20/136,464.72 = 38,373.60/x
  3. Step 3: Cross multiply
    90,964.20x = 136,464.72 × 38,373.60
  4. Step 4: Simplify right side
    90,964.20x = 5,236,642,579.39
  5. Step 5: Solve for x
    x = 5,236,642,579.39/90,964.20
  6. Step 6: Final answer
    x = 57,568.17

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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.