Home / 78,986.58-118,485.98-26,396.24

Finding the Fourth Proportional to 78,986.58, 118,485.98 and 26,396.24

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Solution

The fourth proportional to 78,986.58, 118,485.98 and 26,396.24 is: 39,596.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,986.58 : 118,485.98 = 26,396.24 : x
  2. Step 2: Convert to fraction form
    78,986.58/118,485.98 = 26,396.24/x
  3. Step 3: Cross multiply
    78,986.58x = 118,485.98 × 26,396.24
  4. Step 4: Simplify right side
    78,986.58x = 3,127,584,364.72
  5. Step 5: Solve for x
    x = 3,127,584,364.72/78,986.58
  6. Step 6: Final answer
    x = 39,596.40

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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.