Home / 90,782.40-136,226.88-38,187.84

Finding the Fourth Proportional to 90,782.40, 136,226.88 and 38,187.84

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Solution

The fourth proportional to 90,782.40, 136,226.88 and 38,187.84 is: 57,304.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,782.40 : 136,226.88 = 38,187.84 : x
  2. Step 2: Convert to fraction form
    90,782.40/136,226.88 = 38,187.84/x
  3. Step 3: Cross multiply
    90,782.40x = 136,226.88 × 38,187.84
  4. Step 4: Simplify right side
    90,782.40x = 5,202,210,297.14
  5. Step 5: Solve for x
    x = 5,202,210,297.14/90,782.40
  6. Step 6: Final answer
    x = 57,304.17

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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.