Home / 82,774.32-124,180-30,183.81

Finding the Fourth Proportional to 82,774.32, 124,180 and 30,183.81

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Solution

The fourth proportional to 82,774.32, 124,180 and 30,183.81 is: 45,282.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,774.32 : 124,180 = 30,183.81 : x
  2. Step 2: Convert to fraction form
    82,774.32/124,180 = 30,183.81/x
  3. Step 3: Cross multiply
    82,774.32x = 124,180 × 30,183.81
  4. Step 4: Simplify right side
    82,774.32x = 3,748,225,525.80
  5. Step 5: Solve for x
    x = 3,748,225,525.80/82,774.32
  6. Step 6: Final answer
    x = 45,282.47

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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.