Home / 85,847.21-118,468.77-48,121.46

Finding the Fourth Proportional to 85,847.21, 118,468.77 and 48,121.46

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Solution

The fourth proportional to 85,847.21, 118,468.77 and 48,121.46 is: 66,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,847.21 : 118,468.77 = 48,121.46 : x
  2. Step 2: Convert to fraction form
    85,847.21/118,468.77 = 48,121.46/x
  3. Step 3: Cross multiply
    85,847.21x = 118,468.77 × 48,121.46
  4. Step 4: Simplify right side
    85,847.21x = 5,700,889,584.46
  5. Step 5: Solve for x
    x = 5,700,889,584.46/85,847.21
  6. Step 6: Final answer
    x = 66,407.40

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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.