Home / 84,200.51-126,205.29-28,027.42

Finding the Fourth Proportional to 84,200.51, 126,205.29 and 28,027.42

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Solution

The fourth proportional to 84,200.51, 126,205.29 and 28,027.42 is: 42,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,200.51 : 126,205.29 = 28,027.42 : x
  2. Step 2: Convert to fraction form
    84,200.51/126,205.29 = 28,027.42/x
  3. Step 3: Cross multiply
    84,200.51x = 126,205.29 × 28,027.42
  4. Step 4: Simplify right side
    84,200.51x = 3,537,208,353.54
  5. Step 5: Solve for x
    x = 3,537,208,353.54/84,200.51
  6. Step 6: Final answer
    x = 42,009.34

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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.