Home / 66,919.17-100,503.56-58,916.78

Finding the Fourth Proportional to 66,919.17, 100,503.56 and 58,916.78

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Solution

The fourth proportional to 66,919.17, 100,503.56 and 58,916.78 is: 88,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,919.17 : 100,503.56 = 58,916.78 : x
  2. Step 2: Convert to fraction form
    66,919.17/100,503.56 = 58,916.78/x
  3. Step 3: Cross multiply
    66,919.17x = 100,503.56 × 58,916.78
  4. Step 4: Simplify right side
    66,919.17x = 5,921,345,631.22
  5. Step 5: Solve for x
    x = 5,921,345,631.22/66,919.17
  6. Step 6: Final answer
    x = 88,485.04

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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.