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Finding the Fourth Proportional to 45,476.08, 68,256.78 and 27,980.08

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Solution

The fourth proportional to 45,476.08, 68,256.78 and 27,980.08 is: 41,996.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,476.08 : 68,256.78 = 27,980.08 : x
  2. Step 2: Convert to fraction form
    45,476.08/68,256.78 = 27,980.08/x
  3. Step 3: Cross multiply
    45,476.08x = 68,256.78 × 27,980.08
  4. Step 4: Simplify right side
    45,476.08x = 1,909,830,164.94
  5. Step 5: Solve for x
    x = 1,909,830,164.94/45,476.08
  6. Step 6: Final answer
    x = 41,996.37

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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.