Home / 81,968.40-122,952.60-54,266.40

Finding the Fourth Proportional to 81,968.40, 122,952.60 and 54,266.40

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Solution

The fourth proportional to 81,968.40, 122,952.60 and 54,266.40 is: 81,399.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,968.40 : 122,952.60 = 54,266.40 : x
  2. Step 2: Convert to fraction form
    81,968.40/122,952.60 = 54,266.40/x
  3. Step 3: Cross multiply
    81,968.40x = 122,952.60 × 54,266.40
  4. Step 4: Simplify right side
    81,968.40x = 6,672,194,972.64
  5. Step 5: Solve for x
    x = 6,672,194,972.64/81,968.40
  6. Step 6: Final answer
    x = 81,399.60

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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.