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Finding the Fourth Proportional to 52,321.54, 72,203.82 and 28,448.20

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Solution

The fourth proportional to 52,321.54, 72,203.82 and 28,448.20 is: 39,258.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,321.54 : 72,203.82 = 28,448.20 : x
  2. Step 2: Convert to fraction form
    52,321.54/72,203.82 = 28,448.20/x
  3. Step 3: Cross multiply
    52,321.54x = 72,203.82 × 28,448.20
  4. Step 4: Simplify right side
    52,321.54x = 2,054,068,712.12
  5. Step 5: Solve for x
    x = 2,054,068,712.12/52,321.54
  6. Step 6: Final answer
    x = 39,258.57

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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.