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Finding the Fourth Proportional to 45,661.68, 62,995.32 and 28,656

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Solution

The fourth proportional to 45,661.68, 62,995.32 and 28,656 is: 39,534.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,661.68 : 62,995.32 = 28,656 : x
  2. Step 2: Convert to fraction form
    45,661.68/62,995.32 = 28,656/x
  3. Step 3: Cross multiply
    45,661.68x = 62,995.32 × 28,656
  4. Step 4: Simplify right side
    45,661.68x = 1,805,193,889.92
  5. Step 5: Solve for x
    x = 1,805,193,889.92/45,661.68
  6. Step 6: Final answer
    x = 39,534.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.