Home / 85,611.10-118,190.82-51,628.19

Finding the Fourth Proportional to 85,611.10, 118,190.82 and 51,628.19

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Solution

The fourth proportional to 85,611.10, 118,190.82 and 51,628.19 is: 71,275.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,611.10 : 118,190.82 = 51,628.19 : x
  2. Step 2: Convert to fraction form
    85,611.10/118,190.82 = 51,628.19/x
  3. Step 3: Cross multiply
    85,611.10x = 118,190.82 × 51,628.19
  4. Step 4: Simplify right side
    85,611.10x = 6,101,978,111.22
  5. Step 5: Solve for x
    x = 6,101,978,111.22/85,611.10
  6. Step 6: Final answer
    x = 71,275.55

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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.