Home / 70,126.24-105,198-28,567.84

Finding the Fourth Proportional to 70,126.24, 105,198 and 28,567.84

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Solution

The fourth proportional to 70,126.24, 105,198 and 28,567.84 is: 42,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,126.24 : 105,198 = 28,567.84 : x
  2. Step 2: Convert to fraction form
    70,126.24/105,198 = 28,567.84/x
  3. Step 3: Cross multiply
    70,126.24x = 105,198 × 28,567.84
  4. Step 4: Simplify right side
    70,126.24x = 3,005,279,632.32
  5. Step 5: Solve for x
    x = 3,005,279,632.32/70,126.24
  6. Step 6: Final answer
    x = 42,855.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.