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Finding the Fourth Proportional to 85,355.58, 117,763.29 and 47,622.54

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Solution

The fourth proportional to 85,355.58, 117,763.29 and 47,622.54 is: 65,703.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,355.58 : 117,763.29 = 47,622.54 : x
  2. Step 2: Convert to fraction form
    85,355.58/117,763.29 = 47,622.54/x
  3. Step 3: Cross multiply
    85,355.58x = 117,763.29 × 47,622.54
  4. Step 4: Simplify right side
    85,355.58x = 5,608,186,988.56
  5. Step 5: Solve for x
    x = 5,608,186,988.56/85,355.58
  6. Step 6: Final answer
    x = 65,703.81

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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.