Home / 78,378.37-117,566.92-46,577.83

Finding the Fourth Proportional to 78,378.37, 117,566.92 and 46,577.83

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Solution

The fourth proportional to 78,378.37, 117,566.92 and 46,577.83 is: 69,866.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,378.37 : 117,566.92 = 46,577.83 : x
  2. Step 2: Convert to fraction form
    78,378.37/117,566.92 = 46,577.83/x
  3. Step 3: Cross multiply
    78,378.37x = 117,566.92 × 46,577.83
  4. Step 4: Simplify right side
    78,378.37x = 5,476,011,192.66
  5. Step 5: Solve for x
    x = 5,476,011,192.66/78,378.37
  6. Step 6: Final answer
    x = 69,866.36

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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.