Home / 53,858.52-74,328.78-31,203.60

Finding the Fourth Proportional to 53,858.52, 74,328.78 and 31,203.60

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Solution

The fourth proportional to 53,858.52, 74,328.78 and 31,203.60 is: 43,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,858.52 : 74,328.78 = 31,203.60 : x
  2. Step 2: Convert to fraction form
    53,858.52/74,328.78 = 31,203.60/x
  3. Step 3: Cross multiply
    53,858.52x = 74,328.78 × 31,203.60
  4. Step 4: Simplify right side
    53,858.52x = 2,319,325,519.61
  5. Step 5: Solve for x
    x = 2,319,325,519.61/53,858.52
  6. Step 6: Final answer
    x = 43,063.30

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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.