Home / 40,106.12-55,347.75-23,109.05

Finding the Fourth Proportional to 40,106.12, 55,347.75 and 23,109.05

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Solution

The fourth proportional to 40,106.12, 55,347.75 and 23,109.05 is: 31,891.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,106.12 : 55,347.75 = 23,109.05 : x
  2. Step 2: Convert to fraction form
    40,106.12/55,347.75 = 23,109.05/x
  3. Step 3: Cross multiply
    40,106.12x = 55,347.75 × 23,109.05
  4. Step 4: Simplify right side
    40,106.12x = 1,279,033,645.40
  5. Step 5: Solve for x
    x = 1,279,033,645.40/40,106.12
  6. Step 6: Final answer
    x = 31,891.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.