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Finding the Fourth Proportional to 45,507.69, 68,261.54 and 17,786.25

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Solution

The fourth proportional to 45,507.69, 68,261.54 and 17,786.25 is: 26,679.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,507.69 : 68,261.54 = 17,786.25 : x
  2. Step 2: Convert to fraction form
    45,507.69/68,261.54 = 17,786.25/x
  3. Step 3: Cross multiply
    45,507.69x = 68,261.54 × 17,786.25
  4. Step 4: Simplify right side
    45,507.69x = 1,214,116,726.89
  5. Step 5: Solve for x
    x = 1,214,116,726.89/45,507.69
  6. Step 6: Final answer
    x = 26,679.38

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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.