Home / 53,033.60-73,121.60-38,880.64

Finding the Fourth Proportional to 53,033.60, 73,121.60 and 38,880.64

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Solution

The fourth proportional to 53,033.60, 73,121.60 and 38,880.64 is: 53,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,033.60 : 73,121.60 = 38,880.64 : x
  2. Step 2: Convert to fraction form
    53,033.60/73,121.60 = 38,880.64/x
  3. Step 3: Cross multiply
    53,033.60x = 73,121.60 × 38,880.64
  4. Step 4: Simplify right side
    53,033.60x = 2,843,014,605.82
  5. Step 5: Solve for x
    x = 2,843,014,605.82/53,033.60
  6. Step 6: Final answer
    x = 53,607.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.