Home / 70,570.20-97,389.18-40,344.60

Finding the Fourth Proportional to 70,570.20, 97,389.18 and 40,344.60

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Solution

The fourth proportional to 70,570.20, 97,389.18 and 40,344.60 is: 55,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,570.20 : 97,389.18 = 40,344.60 : x
  2. Step 2: Convert to fraction form
    70,570.20/97,389.18 = 40,344.60/x
  3. Step 3: Cross multiply
    70,570.20x = 97,389.18 × 40,344.60
  4. Step 4: Simplify right side
    70,570.20x = 3,929,127,511.43
  5. Step 5: Solve for x
    x = 3,929,127,511.43/70,570.20
  6. Step 6: Final answer
    x = 55,676.87

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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.