Home / 54,865.93-82,290.45-17,421.11

Finding the Fourth Proportional to 54,865.93, 82,290.45 and 17,421.11

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Solution

The fourth proportional to 54,865.93, 82,290.45 and 17,421.11 is: 26,128.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,865.93 : 82,290.45 = 17,421.11 : x
  2. Step 2: Convert to fraction form
    54,865.93/82,290.45 = 17,421.11/x
  3. Step 3: Cross multiply
    54,865.93x = 82,290.45 × 17,421.11
  4. Step 4: Simplify right side
    54,865.93x = 1,433,590,981.40
  5. Step 5: Solve for x
    x = 1,433,590,981.40/54,865.93
  6. Step 6: Final answer
    x = 26,128.98

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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.