Home / 81,513.40-122,089.46-62,654.60

Finding the Fourth Proportional to 81,513.40, 122,089.46 and 62,654.60

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Solution

The fourth proportional to 81,513.40, 122,089.46 and 62,654.60 is: 93,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,513.40 : 122,089.46 = 62,654.60 : x
  2. Step 2: Convert to fraction form
    81,513.40/122,089.46 = 62,654.60/x
  3. Step 3: Cross multiply
    81,513.40x = 122,089.46 × 62,654.60
  4. Step 4: Simplify right side
    81,513.40x = 7,649,466,280.52
  5. Step 5: Solve for x
    x = 7,649,466,280.52/81,513.40
  6. Step 6: Final answer
    x = 93,843.05

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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.