Home / 66,080.47-91,188.62-35,865.15

Finding the Fourth Proportional to 66,080.47, 91,188.62 and 35,865.15

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Solution

The fourth proportional to 66,080.47, 91,188.62 and 35,865.15 is: 49,492.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,080.47 : 91,188.62 = 35,865.15 : x
  2. Step 2: Convert to fraction form
    66,080.47/91,188.62 = 35,865.15/x
  3. Step 3: Cross multiply
    66,080.47x = 91,188.62 × 35,865.15
  4. Step 4: Simplify right side
    66,080.47x = 3,270,493,013.31
  5. Step 5: Solve for x
    x = 3,270,493,013.31/66,080.47
  6. Step 6: Final answer
    x = 49,492.58

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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.