Home / 66,121.65-91,248.08-35,907.48

Finding the Fourth Proportional to 66,121.65, 91,248.08 and 35,907.48

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Solution

The fourth proportional to 66,121.65, 91,248.08 and 35,907.48 is: 49,552.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,121.65 : 91,248.08 = 35,907.48 : x
  2. Step 2: Convert to fraction form
    66,121.65/91,248.08 = 35,907.48/x
  3. Step 3: Cross multiply
    66,121.65x = 91,248.08 × 35,907.48
  4. Step 4: Simplify right side
    66,121.65x = 3,276,488,428.10
  5. Step 5: Solve for x
    x = 3,276,488,428.10/66,121.65
  6. Step 6: Final answer
    x = 49,552.43

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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.