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Finding the Fourth Proportional to 85,396.26, 117,846.72 and 47,670.51

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Solution

The fourth proportional to 85,396.26, 117,846.72 and 47,670.51 is: 65,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,396.26 : 117,846.72 = 47,670.51 : x
  2. Step 2: Convert to fraction form
    85,396.26/117,846.72 = 47,670.51/x
  3. Step 3: Cross multiply
    85,396.26x = 117,846.72 × 47,670.51
  4. Step 4: Simplify right side
    85,396.26x = 5,617,813,244.23
  5. Step 5: Solve for x
    x = 5,617,813,244.23/85,396.26
  6. Step 6: Final answer
    x = 65,785.24

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1.5x scale

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.