Home / 53,477.40-80,216.10-39,480.60

Finding the Fourth Proportional to 53,477.40, 80,216.10 and 39,480.60

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Solution

The fourth proportional to 53,477.40, 80,216.10 and 39,480.60 is: 59,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,477.40 : 80,216.10 = 39,480.60 : x
  2. Step 2: Convert to fraction form
    53,477.40/80,216.10 = 39,480.60/x
  3. Step 3: Cross multiply
    53,477.40x = 80,216.10 × 39,480.60
  4. Step 4: Simplify right side
    53,477.40x = 3,166,979,757.66
  5. Step 5: Solve for x
    x = 3,166,979,757.66/53,477.40
  6. Step 6: Final answer
    x = 59,220.90

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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.