Home / 69,077.90-103,671.53-26,978.15

Finding the Fourth Proportional to 69,077.90, 103,671.53 and 26,978.15

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Solution

The fourth proportional to 69,077.90, 103,671.53 and 26,978.15 is: 40,488.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,077.90 : 103,671.53 = 26,978.15 : x
  2. Step 2: Convert to fraction form
    69,077.90/103,671.53 = 26,978.15/x
  3. Step 3: Cross multiply
    69,077.90x = 103,671.53 × 26,978.15
  4. Step 4: Simplify right side
    69,077.90x = 2,796,866,087.07
  5. Step 5: Solve for x
    x = 2,796,866,087.07/69,077.90
  6. Step 6: Final answer
    x = 40,488.58

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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.