Home / 89,484.75-123,440.36-55,481.76

Finding the Fourth Proportional to 89,484.75, 123,440.36 and 55,481.76

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Solution

The fourth proportional to 89,484.75, 123,440.36 and 55,481.76 is: 76,534.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,484.75 : 123,440.36 = 55,481.76 : x
  2. Step 2: Convert to fraction form
    89,484.75/123,440.36 = 55,481.76/x
  3. Step 3: Cross multiply
    89,484.75x = 123,440.36 × 55,481.76
  4. Step 4: Simplify right side
    89,484.75x = 6,848,688,150.42
  5. Step 5: Solve for x
    x = 6,848,688,150.42/89,484.75
  6. Step 6: Final answer
    x = 76,534.70

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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.