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Finding the Fourth Proportional to 84,804.97, 127,222.12 and 28,645.49

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Solution

The fourth proportional to 84,804.97, 127,222.12 and 28,645.49 is: 42,973.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,804.97 : 127,222.12 = 28,645.49 : x
  2. Step 2: Convert to fraction form
    84,804.97/127,222.12 = 28,645.49/x
  3. Step 3: Cross multiply
    84,804.97x = 127,222.12 × 28,645.49
  4. Step 4: Simplify right side
    84,804.97x = 3,644,339,345.01
  5. Step 5: Solve for x
    x = 3,644,339,345.01/84,804.97
  6. Step 6: Final answer
    x = 42,973.18

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1.5x scale

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.