Home / 78,964.64-118,453.20-26,374.32

Finding the Fourth Proportional to 78,964.64, 118,453.20 and 26,374.32

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Solution

The fourth proportional to 78,964.64, 118,453.20 and 26,374.32 is: 39,563.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,964.64 : 118,453.20 = 26,374.32 : x
  2. Step 2: Convert to fraction form
    78,964.64/118,453.20 = 26,374.32/x
  3. Step 3: Cross multiply
    78,964.64x = 118,453.20 × 26,374.32
  4. Step 4: Simplify right side
    78,964.64x = 3,124,122,601.82
  5. Step 5: Solve for x
    x = 3,124,122,601.82/78,964.64
  6. Step 6: Final answer
    x = 39,563.56

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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.