Home / 89,529.60-123,572.42-51,311.55

Finding the Fourth Proportional to 89,529.60, 123,572.42 and 51,311.55

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Solution

The fourth proportional to 89,529.60, 123,572.42 and 51,311.55 is: 70,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,529.60 : 123,572.42 = 51,311.55 : x
  2. Step 2: Convert to fraction form
    89,529.60/123,572.42 = 51,311.55/x
  3. Step 3: Cross multiply
    89,529.60x = 123,572.42 × 51,311.55
  4. Step 4: Simplify right side
    89,529.60x = 6,340,692,407.45
  5. Step 5: Solve for x
    x = 6,340,692,407.45/89,529.60
  6. Step 6: Final answer
    x = 70,822.30

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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.