Home / 78,918.56-118,376.64-23,514.56

Finding the Fourth Proportional to 78,918.56, 118,376.64 and 23,514.56

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Solution

The fourth proportional to 78,918.56, 118,376.64 and 23,514.56 is: 35,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,918.56 : 118,376.64 = 23,514.56 : x
  2. Step 2: Convert to fraction form
    78,918.56/118,376.64 = 23,514.56/x
  3. Step 3: Cross multiply
    78,918.56x = 118,376.64 × 23,514.56
  4. Step 4: Simplify right side
    78,918.56x = 2,783,574,603.88
  5. Step 5: Solve for x
    x = 2,783,574,603.88/78,918.56
  6. Step 6: Final answer
    x = 35,271.48

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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.