Home / 62,743.08-94,128.66-21,189

Finding the Fourth Proportional to 62,743.08, 94,128.66 and 21,189

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Solution

The fourth proportional to 62,743.08, 94,128.66 and 21,189 is: 31,788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,743.08 : 94,128.66 = 21,189 : x
  2. Step 2: Convert to fraction form
    62,743.08/94,128.66 = 21,189/x
  3. Step 3: Cross multiply
    62,743.08x = 94,128.66 × 21,189
  4. Step 4: Simplify right side
    62,743.08x = 1,994,492,176.74
  5. Step 5: Solve for x
    x = 1,994,492,176.74/62,743.08
  6. Step 6: Final answer
    x = 31,788.24

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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.