Home / 88,949.61-133,490.16-71,628.57

Finding the Fourth Proportional to 88,949.61, 133,490.16 and 71,628.57

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Solution

The fourth proportional to 88,949.61, 133,490.16 and 71,628.57 is: 107,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,949.61 : 133,490.16 = 71,628.57 : x
  2. Step 2: Convert to fraction form
    88,949.61/133,490.16 = 71,628.57/x
  3. Step 3: Cross multiply
    88,949.61x = 133,490.16 × 71,628.57
  4. Step 4: Simplify right side
    88,949.61x = 9,561,709,269.87
  5. Step 5: Solve for x
    x = 9,561,709,269.87/88,949.61
  6. Step 6: Final answer
    x = 107,495.80

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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.