Home / 70,768.08-97,653.60-38,938.32

Finding the Fourth Proportional to 70,768.08, 97,653.60 and 38,938.32

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Solution

The fourth proportional to 70,768.08, 97,653.60 and 38,938.32 is: 53,731.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,768.08 : 97,653.60 = 38,938.32 : x
  2. Step 2: Convert to fraction form
    70,768.08/97,653.60 = 38,938.32/x
  3. Step 3: Cross multiply
    70,768.08x = 97,653.60 × 38,938.32
  4. Step 4: Simplify right side
    70,768.08x = 3,802,467,125.95
  5. Step 5: Solve for x
    x = 3,802,467,125.95/70,768.08
  6. Step 6: Final answer
    x = 53,731.39

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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.