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Finding the Fourth Proportional to 47,859, 66,045.44 and 26,643.28

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Solution

The fourth proportional to 47,859, 66,045.44 and 26,643.28 is: 36,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,859 : 66,045.44 = 26,643.28 : x
  2. Step 2: Convert to fraction form
    47,859/66,045.44 = 26,643.28/x
  3. Step 3: Cross multiply
    47,859x = 66,045.44 × 26,643.28
  4. Step 4: Simplify right side
    47,859x = 1,759,667,150.64
  5. Step 5: Solve for x
    x = 1,759,667,150.64/47,859
  6. Step 6: Final answer
    x = 36,767.74

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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.