Home / 66,468.12-91,735.74-43,803.60

Finding the Fourth Proportional to 66,468.12, 91,735.74 and 43,803.60

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Solution

The fourth proportional to 66,468.12, 91,735.74 and 43,803.60 is: 60,455.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,468.12 : 91,735.74 = 43,803.60 : x
  2. Step 2: Convert to fraction form
    66,468.12/91,735.74 = 43,803.60/x
  3. Step 3: Cross multiply
    66,468.12x = 91,735.74 × 43,803.60
  4. Step 4: Simplify right side
    66,468.12x = 4,018,355,660.66
  5. Step 5: Solve for x
    x = 4,018,355,660.66/66,468.12
  6. Step 6: Final answer
    x = 60,455.38

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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.