Home / 89,693.50-123,777.06-51,989.62

Finding the Fourth Proportional to 89,693.50, 123,777.06 and 51,989.62

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Solution

The fourth proportional to 89,693.50, 123,777.06 and 51,989.62 is: 71,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,693.50 : 123,777.06 = 51,989.62 : x
  2. Step 2: Convert to fraction form
    89,693.50/123,777.06 = 51,989.62/x
  3. Step 3: Cross multiply
    89,693.50x = 123,777.06 × 51,989.62
  4. Step 4: Simplify right side
    89,693.50x = 6,435,122,314.12
  5. Step 5: Solve for x
    x = 6,435,122,314.12/89,693.50
  6. Step 6: Final answer
    x = 71,745.69

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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.