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Finding the Fourth Proportional to 45,259.33, 67,892.33 and 11,979.17

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Solution

The fourth proportional to 45,259.33, 67,892.33 and 11,979.17 is: 17,969.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,259.33 : 67,892.33 = 11,979.17 : x
  2. Step 2: Convert to fraction form
    45,259.33/67,892.33 = 11,979.17/x
  3. Step 3: Cross multiply
    45,259.33x = 67,892.33 × 11,979.17
  4. Step 4: Simplify right side
    45,259.33x = 813,293,762.77
  5. Step 5: Solve for x
    x = 813,293,762.77/45,259.33
  6. Step 6: Final answer
    x = 17,969.64

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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.