Home / 69,020.16-103,661.46-42,907.38

Finding the Fourth Proportional to 69,020.16, 103,661.46 and 42,907.38

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Solution

The fourth proportional to 69,020.16, 103,661.46 and 42,907.38 is: 64,442.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,020.16 : 103,661.46 = 42,907.38 : x
  2. Step 2: Convert to fraction form
    69,020.16/103,661.46 = 42,907.38/x
  3. Step 3: Cross multiply
    69,020.16x = 103,661.46 × 42,907.38
  4. Step 4: Simplify right side
    69,020.16x = 4,447,841,655.57
  5. Step 5: Solve for x
    x = 4,447,841,655.57/69,020.16
  6. Step 6: Final answer
    x = 64,442.64

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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.