Home / 70,516.16-97,313.60-38,683.12

Finding the Fourth Proportional to 70,516.16, 97,313.60 and 38,683.12

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Solution

The fourth proportional to 70,516.16, 97,313.60 and 38,683.12 is: 53,383.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.16 : 97,313.60 = 38,683.12 : x
  2. Step 2: Convert to fraction form
    70,516.16/97,313.60 = 38,683.12/x
  3. Step 3: Cross multiply
    70,516.16x = 97,313.60 × 38,683.12
  4. Step 4: Simplify right side
    70,516.16x = 3,764,393,666.43
  5. Step 5: Solve for x
    x = 3,764,393,666.43/70,516.16
  6. Step 6: Final answer
    x = 53,383.42

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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.