Home / 79,107.26-118,678.67-26,515.40

Finding the Fourth Proportional to 79,107.26, 118,678.67 and 26,515.40

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Solution

The fourth proportional to 79,107.26, 118,678.67 and 26,515.40 is: 39,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,107.26 : 118,678.67 = 26,515.40 : x
  2. Step 2: Convert to fraction form
    79,107.26/118,678.67 = 26,515.40/x
  3. Step 3: Cross multiply
    79,107.26x = 118,678.67 × 26,515.40
  4. Step 4: Simplify right side
    79,107.26x = 3,146,812,273.94
  5. Step 5: Solve for x
    x = 3,146,812,273.94/79,107.26
  6. Step 6: Final answer
    x = 39,779.06

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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.