Home / 74,340.90-111,512.25-21,751.47

Finding the Fourth Proportional to 74,340.90, 111,512.25 and 21,751.47

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Solution

The fourth proportional to 74,340.90, 111,512.25 and 21,751.47 is: 32,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,340.90 : 111,512.25 = 21,751.47 : x
  2. Step 2: Convert to fraction form
    74,340.90/111,512.25 = 21,751.47/x
  3. Step 3: Cross multiply
    74,340.90x = 111,512.25 × 21,751.47
  4. Step 4: Simplify right side
    74,340.90x = 2,425,555,360.51
  5. Step 5: Solve for x
    x = 2,425,555,360.51/74,340.90
  6. Step 6: Final answer
    x = 32,627.47

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1.5x scale

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.