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Finding the Fourth Proportional to 85,323.46, 117,738.21 and 47,600.14

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Solution

The fourth proportional to 85,323.46, 117,738.21 and 47,600.14 is: 65,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,323.46 : 117,738.21 = 47,600.14 : x
  2. Step 2: Convert to fraction form
    85,323.46/117,738.21 = 47,600.14/x
  3. Step 3: Cross multiply
    85,323.46x = 117,738.21 × 47,600.14
  4. Step 4: Simplify right side
    85,323.46x = 5,604,355,279.35
  5. Step 5: Solve for x
    x = 5,604,355,279.35/85,323.46
  6. Step 6: Final answer
    x = 65,683.64

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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.