Home / 145,791.09-218,705.16-57,033.21

Finding the Fourth Proportional to 145,791.09, 218,705.16 and 57,033.21

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Solution

The fourth proportional to 145,791.09, 218,705.16 and 57,033.21 is: 85,557.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,791.09 : 218,705.16 = 57,033.21 : x
  2. Step 2: Convert to fraction form
    145,791.09/218,705.16 = 57,033.21/x
  3. Step 3: Cross multiply
    145,791.09x = 218,705.16 × 57,033.21
  4. Step 4: Simplify right side
    145,791.09x = 12,473,458,352.38
  5. Step 5: Solve for x
    x = 12,473,458,352.38/145,791.09
  6. Step 6: Final answer
    x = 85,557.07

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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.