Home / 74,387.32-111,580.96-18,983.32

Finding the Fourth Proportional to 74,387.32, 111,580.96 and 18,983.32

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Solution

The fourth proportional to 74,387.32, 111,580.96 and 18,983.32 is: 28,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,387.32 : 111,580.96 = 18,983.32 : x
  2. Step 2: Convert to fraction form
    74,387.32/111,580.96 = 18,983.32/x
  3. Step 3: Cross multiply
    74,387.32x = 111,580.96 × 18,983.32
  4. Step 4: Simplify right side
    74,387.32x = 2,118,177,069.59
  5. Step 5: Solve for x
    x = 2,118,177,069.59/74,387.32
  6. Step 6: Final answer
    x = 28,474.97

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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.