Home / 54,811.04-75,642.64-30,929

Finding the Fourth Proportional to 54,811.04, 75,642.64 and 30,929

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Solution

The fourth proportional to 54,811.04, 75,642.64 and 30,929 is: 42,683.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,811.04 : 75,642.64 = 30,929 : x
  2. Step 2: Convert to fraction form
    54,811.04/75,642.64 = 30,929/x
  3. Step 3: Cross multiply
    54,811.04x = 75,642.64 × 30,929
  4. Step 4: Simplify right side
    54,811.04x = 2,339,551,212.56
  5. Step 5: Solve for x
    x = 2,339,551,212.56/54,811.04
  6. Step 6: Final answer
    x = 42,683.94

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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.