Home / 84,277.89-126,374.20-28,098.32

Finding the Fourth Proportional to 84,277.89, 126,374.20 and 28,098.32

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Solution

The fourth proportional to 84,277.89, 126,374.20 and 28,098.32 is: 42,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,277.89 : 126,374.20 = 28,098.32 : x
  2. Step 2: Convert to fraction form
    84,277.89/126,374.20 = 28,098.32/x
  3. Step 3: Cross multiply
    84,277.89x = 126,374.20 × 28,098.32
  4. Step 4: Simplify right side
    84,277.89x = 3,550,902,009.23
  5. Step 5: Solve for x
    x = 3,550,902,009.23/84,277.89
  6. Step 6: Final answer
    x = 42,133.26

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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.