Home / 74,110.14-111,131.57-31,970.29

Finding the Fourth Proportional to 74,110.14, 111,131.57 and 31,970.29

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Solution

The fourth proportional to 74,110.14, 111,131.57 and 31,970.29 is: 47,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,110.14 : 111,131.57 = 31,970.29 : x
  2. Step 2: Convert to fraction form
    74,110.14/111,131.57 = 31,970.29/x
  3. Step 3: Cross multiply
    74,110.14x = 111,131.57 × 31,970.29
  4. Step 4: Simplify right side
    74,110.14x = 3,552,908,361.20
  5. Step 5: Solve for x
    x = 3,552,908,361.20/74,110.14
  6. Step 6: Final answer
    x = 47,940.92

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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.