Home / 69,140.90-103,638.45-27,004.70

Finding the Fourth Proportional to 69,140.90, 103,638.45 and 27,004.70

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Solution

The fourth proportional to 69,140.90, 103,638.45 and 27,004.70 is: 40,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,140.90 : 103,638.45 = 27,004.70 : x
  2. Step 2: Convert to fraction form
    69,140.90/103,638.45 = 27,004.70/x
  3. Step 3: Cross multiply
    69,140.90x = 103,638.45 × 27,004.70
  4. Step 4: Simplify right side
    69,140.90x = 2,798,725,250.72
  5. Step 5: Solve for x
    x = 2,798,725,250.72/69,140.90
  6. Step 6: Final answer
    x = 40,478.58

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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.