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Finding the Fourth Proportional to 45,948.64, 68,918.64 and 19,674.40

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Solution

The fourth proportional to 45,948.64, 68,918.64 and 19,674.40 is: 29,509.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,948.64 : 68,918.64 = 19,674.40 : x
  2. Step 2: Convert to fraction form
    45,948.64/68,918.64 = 19,674.40/x
  3. Step 3: Cross multiply
    45,948.64x = 68,918.64 × 19,674.40
  4. Step 4: Simplify right side
    45,948.64x = 1,355,932,890.82
  5. Step 5: Solve for x
    x = 1,355,932,890.82/45,948.64
  6. Step 6: Final answer
    x = 29,509.75

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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.