Home / 89,586.43-123,630.20-51,345.15

Finding the Fourth Proportional to 89,586.43, 123,630.20 and 51,345.15

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Solution

The fourth proportional to 89,586.43, 123,630.20 and 51,345.15 is: 70,856.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,586.43 : 123,630.20 = 51,345.15 : x
  2. Step 2: Convert to fraction form
    89,586.43/123,630.20 = 51,345.15/x
  3. Step 3: Cross multiply
    89,586.43x = 123,630.20 × 51,345.15
  4. Step 4: Simplify right side
    89,586.43x = 6,347,811,163.53
  5. Step 5: Solve for x
    x = 6,347,811,163.53/89,586.43
  6. Step 6: Final answer
    x = 70,856.84

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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.