Home / 89,420.80-123,393.36-49,132.48

Finding the Fourth Proportional to 89,420.80, 123,393.36 and 49,132.48

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Solution

The fourth proportional to 89,420.80, 123,393.36 and 49,132.48 is: 67,798.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,420.80 : 123,393.36 = 49,132.48 : x
  2. Step 2: Convert to fraction form
    89,420.80/123,393.36 = 49,132.48/x
  3. Step 3: Cross multiply
    89,420.80x = 123,393.36 × 49,132.48
  4. Step 4: Simplify right side
    89,420.80x = 6,062,621,792.33
  5. Step 5: Solve for x
    x = 6,062,621,792.33/89,420.80
  6. Step 6: Final answer
    x = 67,798.79

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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.