Home / 70,830.18-97,749.24-40,205.43

Finding the Fourth Proportional to 70,830.18, 97,749.24 and 40,205.43

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Solution

The fourth proportional to 70,830.18, 97,749.24 and 40,205.43 is: 55,485.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,830.18 : 97,749.24 = 40,205.43 : x
  2. Step 2: Convert to fraction form
    70,830.18/97,749.24 = 40,205.43/x
  3. Step 3: Cross multiply
    70,830.18x = 97,749.24 × 40,205.43
  4. Step 4: Simplify right side
    70,830.18x = 3,930,050,226.37
  5. Step 5: Solve for x
    x = 3,930,050,226.37/70,830.18
  6. Step 6: Final answer
    x = 55,485.53

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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.