Home / 84,629.58-126,955.26-28,445.46

Finding the Fourth Proportional to 84,629.58, 126,955.26 and 28,445.46

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Solution

The fourth proportional to 84,629.58, 126,955.26 and 28,445.46 is: 42,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,629.58 : 126,955.26 = 28,445.46 : x
  2. Step 2: Convert to fraction form
    84,629.58/126,955.26 = 28,445.46/x
  3. Step 3: Cross multiply
    84,629.58x = 126,955.26 × 28,445.46
  4. Step 4: Simplify right side
    84,629.58x = 3,611,300,770.12
  5. Step 5: Solve for x
    x = 3,611,300,770.12/84,629.58
  6. Step 6: Final answer
    x = 42,671.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.