Home / 81,774.06-122,708.67-34,385.72

Finding the Fourth Proportional to 81,774.06, 122,708.67 and 34,385.72

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Solution

The fourth proportional to 81,774.06, 122,708.67 and 34,385.72 is: 51,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,774.06 : 122,708.67 = 34,385.72 : x
  2. Step 2: Convert to fraction form
    81,774.06/122,708.67 = 34,385.72/x
  3. Step 3: Cross multiply
    81,774.06x = 122,708.67 × 34,385.72
  4. Step 4: Simplify right side
    81,774.06x = 4,219,425,354.65
  5. Step 5: Solve for x
    x = 4,219,425,354.65/81,774.06
  6. Step 6: Final answer
    x = 51,598.58

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1.5x scale

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.