Home / 66,840.68-92,231.32-39,973.36

Finding the Fourth Proportional to 66,840.68, 92,231.32 and 39,973.36

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Solution

The fourth proportional to 66,840.68, 92,231.32 and 39,973.36 is: 55,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,840.68 : 92,231.32 = 39,973.36 : x
  2. Step 2: Convert to fraction form
    66,840.68/92,231.32 = 39,973.36/x
  3. Step 3: Cross multiply
    66,840.68x = 92,231.32 × 39,973.36
  4. Step 4: Simplify right side
    66,840.68x = 3,686,795,757.64
  5. Step 5: Solve for x
    x = 3,686,795,757.64/66,840.68
  6. Step 6: Final answer
    x = 55,157.96

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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.