Home / 85,611.96-118,142.46-47,370.60

Finding the Fourth Proportional to 85,611.96, 118,142.46 and 47,370.60

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Solution

The fourth proportional to 85,611.96, 118,142.46 and 47,370.60 is: 65,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,611.96 : 118,142.46 = 47,370.60 : x
  2. Step 2: Convert to fraction form
    85,611.96/118,142.46 = 47,370.60/x
  3. Step 3: Cross multiply
    85,611.96x = 118,142.46 × 47,370.60
  4. Step 4: Simplify right side
    85,611.96x = 5,596,479,215.68
  5. Step 5: Solve for x
    x = 5,596,479,215.68/85,611.96
  6. Step 6: Final answer
    x = 65,370.30

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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.