Home / 66,039.05-99,056.80-18,657.41

Finding the Fourth Proportional to 66,039.05, 99,056.80 and 18,657.41

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Solution

The fourth proportional to 66,039.05, 99,056.80 and 18,657.41 is: 27,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039.05 : 99,056.80 = 18,657.41 : x
  2. Step 2: Convert to fraction form
    66,039.05/99,056.80 = 18,657.41/x
  3. Step 3: Cross multiply
    66,039.05x = 99,056.80 × 18,657.41
  4. Step 4: Simplify right side
    66,039.05x = 1,848,143,330.89
  5. Step 5: Solve for x
    x = 1,848,143,330.89/66,039.05
  6. Step 6: Final answer
    x = 27,985.61

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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.