Home / 74,004.21-111,017.25-21,406.86

Finding the Fourth Proportional to 74,004.21, 111,017.25 and 21,406.86

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Solution

The fourth proportional to 74,004.21, 111,017.25 and 21,406.86 is: 32,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,004.21 : 111,017.25 = 21,406.86 : x
  2. Step 2: Convert to fraction form
    74,004.21/111,017.25 = 21,406.86/x
  3. Step 3: Cross multiply
    74,004.21x = 111,017.25 × 21,406.86
  4. Step 4: Simplify right side
    74,004.21x = 2,376,530,728.34
  5. Step 5: Solve for x
    x = 2,376,530,728.34/74,004.21
  6. Step 6: Final answer
    x = 32,113.45

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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.