Home / 85,465.55-117,942.46-47,739.80

Finding the Fourth Proportional to 85,465.55, 117,942.46 and 47,739.80

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Solution

The fourth proportional to 85,465.55, 117,942.46 and 47,739.80 is: 65,880.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,465.55 : 117,942.46 = 47,739.80 : x
  2. Step 2: Convert to fraction form
    85,465.55/117,942.46 = 47,739.80/x
  3. Step 3: Cross multiply
    85,465.55x = 117,942.46 × 47,739.80
  4. Step 4: Simplify right side
    85,465.55x = 5,630,549,232.52
  5. Step 5: Solve for x
    x = 5,630,549,232.52/85,465.55
  6. Step 6: Final answer
    x = 65,880.92

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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.