Home / 89,242.04-123,153-51,515.48

Finding the Fourth Proportional to 89,242.04, 123,153 and 51,515.48

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Solution

The fourth proportional to 89,242.04, 123,153 and 51,515.48 is: 71,090.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,242.04 : 123,153 = 51,515.48 : x
  2. Step 2: Convert to fraction form
    89,242.04/123,153 = 51,515.48/x
  3. Step 3: Cross multiply
    89,242.04x = 123,153 × 51,515.48
  4. Step 4: Simplify right side
    89,242.04x = 6,344,285,908.44
  5. Step 5: Solve for x
    x = 6,344,285,908.44/89,242.04
  6. Step 6: Final answer
    x = 71,090.78

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1.5x scale

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.