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Finding the Fourth Proportional to 45,980.51, 68,913.05 and 19,654.29

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Solution

The fourth proportional to 45,980.51, 68,913.05 and 19,654.29 is: 29,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,980.51 : 68,913.05 = 19,654.29 : x
  2. Step 2: Convert to fraction form
    45,980.51/68,913.05 = 19,654.29/x
  3. Step 3: Cross multiply
    45,980.51x = 68,913.05 × 19,654.29
  4. Step 4: Simplify right side
    45,980.51x = 1,354,436,971.21
  5. Step 5: Solve for x
    x = 1,354,436,971.21/45,980.51
  6. Step 6: Final answer
    x = 29,456.77

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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.