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Finding the Fourth Proportional to 64,894.08, 97,340 and 18,146.32

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Solution

The fourth proportional to 64,894.08, 97,340 and 18,146.32 is: 27,219.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,894.08 : 97,340 = 18,146.32 : x
  2. Step 2: Convert to fraction form
    64,894.08/97,340 = 18,146.32/x
  3. Step 3: Cross multiply
    64,894.08x = 97,340 × 18,146.32
  4. Step 4: Simplify right side
    64,894.08x = 1,766,362,788.80
  5. Step 5: Solve for x
    x = 1,766,362,788.80/64,894.08
  6. Step 6: Final answer
    x = 27,219.17

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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.