Home / 78,907.25-108,892-43,097.35

Finding the Fourth Proportional to 78,907.25, 108,892 and 43,097.35

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Solution

The fourth proportional to 78,907.25, 108,892 and 43,097.35 is: 59,474.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,907.25 : 108,892 = 43,097.35 : x
  2. Step 2: Convert to fraction form
    78,907.25/108,892 = 43,097.35/x
  3. Step 3: Cross multiply
    78,907.25x = 108,892 × 43,097.35
  4. Step 4: Simplify right side
    78,907.25x = 4,692,956,091.74
  5. Step 5: Solve for x
    x = 4,692,956,091.74/78,907.25
  6. Step 6: Final answer
    x = 59,474.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.