Home / 74,380.04-111,570.08-18,976.04

Finding the Fourth Proportional to 74,380.04, 111,570.08 and 18,976.04

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Solution

The fourth proportional to 74,380.04, 111,570.08 and 18,976.04 is: 28,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,380.04 : 111,570.08 = 18,976.04 : x
  2. Step 2: Convert to fraction form
    74,380.04/111,570.08 = 18,976.04/x
  3. Step 3: Cross multiply
    74,380.04x = 111,570.08 × 18,976.04
  4. Step 4: Simplify right side
    74,380.04x = 2,117,158,300.88
  5. Step 5: Solve for x
    x = 2,117,158,300.88/74,380.04
  6. Step 6: Final answer
    x = 28,464.07

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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.