Home / 70,821.53-97,739.43-40,609.67

Finding the Fourth Proportional to 70,821.53, 97,739.43 and 40,609.67

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Solution

The fourth proportional to 70,821.53, 97,739.43 and 40,609.67 is: 56,044.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.53 : 97,739.43 = 40,609.67 : x
  2. Step 2: Convert to fraction form
    70,821.53/97,739.43 = 40,609.67/x
  3. Step 3: Cross multiply
    70,821.53x = 97,739.43 × 40,609.67
  4. Step 4: Simplify right side
    70,821.53x = 3,969,165,509.59
  5. Step 5: Solve for x
    x = 3,969,165,509.59/70,821.53
  6. Step 6: Final answer
    x = 56,044.62

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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.