Home / 89,121.38-122,968.31-52,834.28

Finding the Fourth Proportional to 89,121.38, 122,968.31 and 52,834.28

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Solution

The fourth proportional to 89,121.38, 122,968.31 and 52,834.28 is: 72,899.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,121.38 : 122,968.31 = 52,834.28 : x
  2. Step 2: Convert to fraction form
    89,121.38/122,968.31 = 52,834.28/x
  3. Step 3: Cross multiply
    89,121.38x = 122,968.31 × 52,834.28
  4. Step 4: Simplify right side
    89,121.38x = 6,496,941,242.65
  5. Step 5: Solve for x
    x = 6,496,941,242.65/89,121.38
  6. Step 6: Final answer
    x = 72,899.92

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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.