Home / 81,388.02-122,089.58-25,228.56

Finding the Fourth Proportional to 81,388.02, 122,089.58 and 25,228.56

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Solution

The fourth proportional to 81,388.02, 122,089.58 and 25,228.56 is: 37,845.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,388.02 : 122,089.58 = 25,228.56 : x
  2. Step 2: Convert to fraction form
    81,388.02/122,089.58 = 25,228.56/x
  3. Step 3: Cross multiply
    81,388.02x = 122,089.58 × 25,228.56
  4. Step 4: Simplify right side
    81,388.02x = 3,080,144,294.40
  5. Step 5: Solve for x
    x = 3,080,144,294.40/81,388.02
  6. Step 6: Final answer
    x = 37,845.18

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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.