Home / 53,504.80-80,257.20-40,285.60

Finding the Fourth Proportional to 53,504.80, 80,257.20 and 40,285.60

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Solution

The fourth proportional to 53,504.80, 80,257.20 and 40,285.60 is: 60,428.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,504.80 : 80,257.20 = 40,285.60 : x
  2. Step 2: Convert to fraction form
    53,504.80/80,257.20 = 40,285.60/x
  3. Step 3: Cross multiply
    53,504.80x = 80,257.20 × 40,285.60
  4. Step 4: Simplify right side
    53,504.80x = 3,233,209,456.32
  5. Step 5: Solve for x
    x = 3,233,209,456.32/53,504.80
  6. Step 6: Final answer
    x = 60,428.40

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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.