Home / 89,778.66-123,888.99-49,490.34

Finding the Fourth Proportional to 89,778.66, 123,888.99 and 49,490.34

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Solution

The fourth proportional to 89,778.66, 123,888.99 and 49,490.34 is: 68,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,778.66 : 123,888.99 = 49,490.34 : x
  2. Step 2: Convert to fraction form
    89,778.66/123,888.99 = 49,490.34/x
  3. Step 3: Cross multiply
    89,778.66x = 123,888.99 × 49,490.34
  4. Step 4: Simplify right side
    89,778.66x = 6,131,308,237.36
  5. Step 5: Solve for x
    x = 6,131,308,237.36/89,778.66
  6. Step 6: Final answer
    x = 68,293.60

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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.