Home / 69,780.42-104,670.36-30,315.96

Finding the Fourth Proportional to 69,780.42, 104,670.36 and 30,315.96

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Solution

The fourth proportional to 69,780.42, 104,670.36 and 30,315.96 is: 45,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,780.42 : 104,670.36 = 30,315.96 : x
  2. Step 2: Convert to fraction form
    69,780.42/104,670.36 = 30,315.96/x
  3. Step 3: Cross multiply
    69,780.42x = 104,670.36 × 30,315.96
  4. Step 4: Simplify right side
    69,780.42x = 3,173,182,446.95
  5. Step 5: Solve for x
    x = 3,173,182,446.95/69,780.42
  6. Step 6: Final answer
    x = 45,473.82

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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.