Home / 49,781.08-74,662.62-21,685.40

Finding the Fourth Proportional to 49,781.08, 74,662.62 and 21,685.40

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Solution

The fourth proportional to 49,781.08, 74,662.62 and 21,685.40 is: 32,524.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,781.08 : 74,662.62 = 21,685.40 : x
  2. Step 2: Convert to fraction form
    49,781.08/74,662.62 = 21,685.40/x
  3. Step 3: Cross multiply
    49,781.08x = 74,662.62 × 21,685.40
  4. Step 4: Simplify right side
    49,781.08x = 1,619,088,779.75
  5. Step 5: Solve for x
    x = 1,619,088,779.75/49,781.08
  6. Step 6: Final answer
    x = 32,524.18

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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.