Home / 88,343.10-121,916.72-50,624.64

Finding the Fourth Proportional to 88,343.10, 121,916.72 and 50,624.64

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Solution

The fourth proportional to 88,343.10, 121,916.72 and 50,624.64 is: 69,863.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,343.10 : 121,916.72 = 50,624.64 : x
  2. Step 2: Convert to fraction form
    88,343.10/121,916.72 = 50,624.64/x
  3. Step 3: Cross multiply
    88,343.10x = 121,916.72 × 50,624.64
  4. Step 4: Simplify right side
    88,343.10x = 6,171,990,059.98
  5. Step 5: Solve for x
    x = 6,171,990,059.98/88,343.10
  6. Step 6: Final answer
    x = 69,863.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.