Home / 90,530.35-124,932.71-54,744.28

Finding the Fourth Proportional to 90,530.35, 124,932.71 and 54,744.28

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Solution

The fourth proportional to 90,530.35, 124,932.71 and 54,744.28 is: 75,547.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.35 : 124,932.71 = 54,744.28 : x
  2. Step 2: Convert to fraction form
    90,530.35/124,932.71 = 54,744.28/x
  3. Step 3: Cross multiply
    90,530.35x = 124,932.71 × 54,744.28
  4. Step 4: Simplify right side
    90,530.35x = 6,839,351,257.40
  5. Step 5: Solve for x
    x = 6,839,351,257.40/90,530.35
  6. Step 6: Final answer
    x = 75,547.61

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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.