Home / 74,009.58-111,021.38-20,701.57

Finding the Fourth Proportional to 74,009.58, 111,021.38 and 20,701.57

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Solution

The fourth proportional to 74,009.58, 111,021.38 and 20,701.57 is: 31,054.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,009.58 : 111,021.38 = 20,701.57 : x
  2. Step 2: Convert to fraction form
    74,009.58/111,021.38 = 20,701.57/x
  3. Step 3: Cross multiply
    74,009.58x = 111,021.38 × 20,701.57
  4. Step 4: Simplify right side
    74,009.58x = 2,298,316,869.57
  5. Step 5: Solve for x
    x = 2,298,316,869.57/74,009.58
  6. Step 6: Final answer
    x = 31,054.32

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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.