Home / 64,861.38-89,534.57-55,750.77

Finding the Fourth Proportional to 64,861.38, 89,534.57 and 55,750.77

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Solution

The fourth proportional to 64,861.38, 89,534.57 and 55,750.77 is: 76,958.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,861.38 : 89,534.57 = 55,750.77 : x
  2. Step 2: Convert to fraction form
    64,861.38/89,534.57 = 55,750.77/x
  3. Step 3: Cross multiply
    64,861.38x = 89,534.57 × 55,750.77
  4. Step 4: Simplify right side
    64,861.38x = 4,991,620,940.37
  5. Step 5: Solve for x
    x = 4,991,620,940.37/64,861.38
  6. Step 6: Final answer
    x = 76,958.29

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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.