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Finding the Fourth Proportional to 64,522.36, 96,783.54 and 20,147.32

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Solution

The fourth proportional to 64,522.36, 96,783.54 and 20,147.32 is: 30,220.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,522.36 : 96,783.54 = 20,147.32 : x
  2. Step 2: Convert to fraction form
    64,522.36/96,783.54 = 20,147.32/x
  3. Step 3: Cross multiply
    64,522.36x = 96,783.54 × 20,147.32
  4. Step 4: Simplify right side
    64,522.36x = 1,949,928,951.11
  5. Step 5: Solve for x
    x = 1,949,928,951.11/64,522.36
  6. Step 6: Final answer
    x = 30,220.98

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1.5x scale

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.