Home / 66,185.15-99,256.38-21,801.35

Finding the Fourth Proportional to 66,185.15, 99,256.38 and 21,801.35

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Solution

The fourth proportional to 66,185.15, 99,256.38 and 21,801.35 is: 32,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,185.15 : 99,256.38 = 21,801.35 : x
  2. Step 2: Convert to fraction form
    66,185.15/99,256.38 = 21,801.35/x
  3. Step 3: Cross multiply
    66,185.15x = 99,256.38 × 21,801.35
  4. Step 4: Simplify right side
    66,185.15x = 2,163,923,080.11
  5. Step 5: Solve for x
    x = 2,163,923,080.11/66,185.15
  6. Step 6: Final answer
    x = 32,694.99

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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.