Home / 81,364.18-121,826.01-57,573.94

Finding the Fourth Proportional to 81,364.18, 121,826.01 and 57,573.94

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Solution

The fourth proportional to 81,364.18, 121,826.01 and 57,573.94 is: 86,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,364.18 : 121,826.01 = 57,573.94 : x
  2. Step 2: Convert to fraction form
    81,364.18/121,826.01 = 57,573.94/x
  3. Step 3: Cross multiply
    81,364.18x = 121,826.01 × 57,573.94
  4. Step 4: Simplify right side
    81,364.18x = 7,014,003,390.18
  5. Step 5: Solve for x
    x = 7,014,003,390.18/81,364.18
  6. Step 6: Final answer
    x = 86,205.05

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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.