Home / 70,778.09-97,671.96-38,511.34

Finding the Fourth Proportional to 70,778.09, 97,671.96 and 38,511.34

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Solution

The fourth proportional to 70,778.09, 97,671.96 and 38,511.34 is: 53,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,778.09 : 97,671.96 = 38,511.34 : x
  2. Step 2: Convert to fraction form
    70,778.09/97,671.96 = 38,511.34/x
  3. Step 3: Cross multiply
    70,778.09x = 97,671.96 × 38,511.34
  4. Step 4: Simplify right side
    70,778.09x = 3,761,477,815.85
  5. Step 5: Solve for x
    x = 3,761,477,815.85/70,778.09
  6. Step 6: Final answer
    x = 53,144.66

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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.