Home / 81,679.02-122,492.60-26,262.06

Finding the Fourth Proportional to 81,679.02, 122,492.60 and 26,262.06

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Solution

The fourth proportional to 81,679.02, 122,492.60 and 26,262.06 is: 39,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,679.02 : 122,492.60 = 26,262.06 : x
  2. Step 2: Convert to fraction form
    81,679.02/122,492.60 = 26,262.06/x
  3. Step 3: Cross multiply
    81,679.02x = 122,492.60 × 26,262.06
  4. Step 4: Simplify right side
    81,679.02x = 3,216,908,010.76
  5. Step 5: Solve for x
    x = 3,216,908,010.76/81,679.02
  6. Step 6: Final answer
    x = 39,384.75

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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.