Home / 74,109.14-111,130.07-31,969.29

Finding the Fourth Proportional to 74,109.14, 111,130.07 and 31,969.29

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Solution

The fourth proportional to 74,109.14, 111,130.07 and 31,969.29 is: 47,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,109.14 : 111,130.07 = 31,969.29 : x
  2. Step 2: Convert to fraction form
    74,109.14/111,130.07 = 31,969.29/x
  3. Step 3: Cross multiply
    74,109.14x = 111,130.07 × 31,969.29
  4. Step 4: Simplify right side
    74,109.14x = 3,552,749,275.70
  5. Step 5: Solve for x
    x = 3,552,749,275.70/74,109.14
  6. Step 6: Final answer
    x = 47,939.42

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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.