Home / 85,230.12-117,621.57-47,504.64

Finding the Fourth Proportional to 85,230.12, 117,621.57 and 47,504.64

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Solution

The fourth proportional to 85,230.12, 117,621.57 and 47,504.64 is: 65,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230.12 : 117,621.57 = 47,504.64 : x
  2. Step 2: Convert to fraction form
    85,230.12/117,621.57 = 47,504.64/x
  3. Step 3: Cross multiply
    85,230.12x = 117,621.57 × 47,504.64
  4. Step 4: Simplify right side
    85,230.12x = 5,587,570,339.08
  5. Step 5: Solve for x
    x = 5,587,570,339.08/85,230.12
  6. Step 6: Final answer
    x = 65,558.64

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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.