Home / 88,925.20-122,720.70-51,211.60

Finding the Fourth Proportional to 88,925.20, 122,720.70 and 51,211.60

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Solution

The fourth proportional to 88,925.20, 122,720.70 and 51,211.60 is: 70,674.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,925.20 : 122,720.70 = 51,211.60 : x
  2. Step 2: Convert to fraction form
    88,925.20/122,720.70 = 51,211.60/x
  3. Step 3: Cross multiply
    88,925.20x = 122,720.70 × 51,211.60
  4. Step 4: Simplify right side
    88,925.20x = 6,284,723,285.36
  5. Step 5: Solve for x
    x = 6,284,723,285.36/88,925.20
  6. Step 6: Final answer
    x = 70,674.27

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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.