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Finding the Fourth Proportional to 64,427.58, 88,902.60 and 38,949.30

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Solution

The fourth proportional to 64,427.58, 88,902.60 and 38,949.30 is: 53,745.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,427.58 : 88,902.60 = 38,949.30 : x
  2. Step 2: Convert to fraction form
    64,427.58/88,902.60 = 38,949.30/x
  3. Step 3: Cross multiply
    64,427.58x = 88,902.60 × 38,949.30
  4. Step 4: Simplify right side
    64,427.58x = 3,462,694,038.18
  5. Step 5: Solve for x
    x = 3,462,694,038.18/64,427.58
  6. Step 6: Final answer
    x = 53,745.52

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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.