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Finding the Fourth Proportional to 89,123.79, 122,944.86 and 60,433.77

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Solution

The fourth proportional to 89,123.79, 122,944.86 and 60,433.77 is: 83,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,123.79 : 122,944.86 = 60,433.77 : x
  2. Step 2: Convert to fraction form
    89,123.79/122,944.86 = 60,433.77/x
  3. Step 3: Cross multiply
    89,123.79x = 122,944.86 × 60,433.77
  4. Step 4: Simplify right side
    89,123.79x = 7,430,021,391.92
  5. Step 5: Solve for x
    x = 7,430,021,391.92/89,123.79
  6. Step 6: Final answer
    x = 83,367.43

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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.