Home / 70,318.20-97,039.32-38,487.36

Finding the Fourth Proportional to 70,318.20, 97,039.32 and 38,487.36

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Solution

The fourth proportional to 70,318.20, 97,039.32 and 38,487.36 is: 53,112.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,318.20 : 97,039.32 = 38,487.36 : x
  2. Step 2: Convert to fraction form
    70,318.20/97,039.32 = 38,487.36/x
  3. Step 3: Cross multiply
    70,318.20x = 97,039.32 × 38,487.36
  4. Step 4: Simplify right side
    70,318.20x = 3,734,787,243.00
  5. Step 5: Solve for x
    x = 3,734,787,243.00/70,318.20
  6. Step 6: Final answer
    x = 53,112.67

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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.