Home / 70,942.89-97,905.60-39,111.74

Finding the Fourth Proportional to 70,942.89, 97,905.60 and 39,111.74

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Solution

The fourth proportional to 70,942.89, 97,905.60 and 39,111.74 is: 53,976.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,942.89 : 97,905.60 = 39,111.74 : x
  2. Step 2: Convert to fraction form
    70,942.89/97,905.60 = 39,111.74/x
  3. Step 3: Cross multiply
    70,942.89x = 97,905.60 × 39,111.74
  4. Step 4: Simplify right side
    70,942.89x = 3,829,258,371.74
  5. Step 5: Solve for x
    x = 3,829,258,371.74/70,942.89
  6. Step 6: Final answer
    x = 53,976.63

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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.