Home / 54,681.49-75,457.67-30,809.58

Finding the Fourth Proportional to 54,681.49, 75,457.67 and 30,809.58

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Solution

The fourth proportional to 54,681.49, 75,457.67 and 30,809.58 is: 42,515.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,681.49 : 75,457.67 = 30,809.58 : x
  2. Step 2: Convert to fraction form
    54,681.49/75,457.67 = 30,809.58/x
  3. Step 3: Cross multiply
    54,681.49x = 75,457.67 × 30,809.58
  4. Step 4: Simplify right side
    54,681.49x = 2,324,818,589.14
  5. Step 5: Solve for x
    x = 2,324,818,589.14/54,681.49
  6. Step 6: Final answer
    x = 42,515.64

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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.