Home / 81,774.18-122,708.52-34,385.49

Finding the Fourth Proportional to 81,774.18, 122,708.52 and 34,385.49

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Solution

The fourth proportional to 81,774.18, 122,708.52 and 34,385.49 is: 51,598.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,774.18 : 122,708.52 = 34,385.49 : x
  2. Step 2: Convert to fraction form
    81,774.18/122,708.52 = 34,385.49/x
  3. Step 3: Cross multiply
    81,774.18x = 122,708.52 × 34,385.49
  4. Step 4: Simplify right side
    81,774.18x = 4,219,392,587.37
  5. Step 5: Solve for x
    x = 4,219,392,587.37/81,774.18
  6. Step 6: Final answer
    x = 51,598.10

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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.