Home / 66,021.84-99,023.04-21,653.28

Finding the Fourth Proportional to 66,021.84, 99,023.04 and 21,653.28

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Solution

The fourth proportional to 66,021.84, 99,023.04 and 21,653.28 is: 32,476.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,021.84 : 99,023.04 = 21,653.28 : x
  2. Step 2: Convert to fraction form
    66,021.84/99,023.04 = 21,653.28/x
  3. Step 3: Cross multiply
    66,021.84x = 99,023.04 × 21,653.28
  4. Step 4: Simplify right side
    66,021.84x = 2,144,173,611.57
  5. Step 5: Solve for x
    x = 2,144,173,611.57/66,021.84
  6. Step 6: Final answer
    x = 32,476.73

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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.