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Finding the Fourth Proportional to 88,889.09, 133,187.84 and 53,838.77

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Solution

The fourth proportional to 88,889.09, 133,187.84 and 53,838.77 is: 80,669.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,889.09 : 133,187.84 = 53,838.77 : x
  2. Step 2: Convert to fraction form
    88,889.09/133,187.84 = 53,838.77/x
  3. Step 3: Cross multiply
    88,889.09x = 133,187.84 × 53,838.77
  4. Step 4: Simplify right side
    88,889.09x = 7,170,669,215.36
  5. Step 5: Solve for x
    x = 7,170,669,215.36/88,889.09
  6. Step 6: Final answer
    x = 80,669.85

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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.