Home / 66,209.63-99,315.35-36,685.13

Finding the Fourth Proportional to 66,209.63, 99,315.35 and 36,685.13

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Solution

The fourth proportional to 66,209.63, 99,315.35 and 36,685.13 is: 55,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,209.63 : 99,315.35 = 36,685.13 : x
  2. Step 2: Convert to fraction form
    66,209.63/99,315.35 = 36,685.13/x
  3. Step 3: Cross multiply
    66,209.63x = 99,315.35 × 36,685.13
  4. Step 4: Simplify right side
    66,209.63x = 3,643,396,120.88
  5. Step 5: Solve for x
    x = 3,643,396,120.88/66,209.63
  6. Step 6: Final answer
    x = 55,028.19

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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.