Home / 89,375.09-133,858.43-42,660.77

Finding the Fourth Proportional to 89,375.09, 133,858.43 and 42,660.77

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Solution

The fourth proportional to 89,375.09, 133,858.43 and 42,660.77 is: 63,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,375.09 : 133,858.43 = 42,660.77 : x
  2. Step 2: Convert to fraction form
    89,375.09/133,858.43 = 42,660.77/x
  3. Step 3: Cross multiply
    89,375.09x = 133,858.43 × 42,660.77
  4. Step 4: Simplify right side
    89,375.09x = 5,710,503,694.79
  5. Step 5: Solve for x
    x = 5,710,503,694.79/89,375.09
  6. Step 6: Final answer
    x = 63,893.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.