Home / 54,681.67-75,455.31-30,812.59

Finding the Fourth Proportional to 54,681.67, 75,455.31 and 30,812.59

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Solution

The fourth proportional to 54,681.67, 75,455.31 and 30,812.59 is: 42,518.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,681.67 : 75,455.31 = 30,812.59 : x
  2. Step 2: Convert to fraction form
    54,681.67/75,455.31 = 30,812.59/x
  3. Step 3: Cross multiply
    54,681.67x = 75,455.31 × 30,812.59
  4. Step 4: Simplify right side
    54,681.67x = 2,324,973,530.35
  5. Step 5: Solve for x
    x = 2,324,973,530.35/54,681.67
  6. Step 6: Final answer
    x = 42,518.33

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1.5x scale

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.