Home / 64,120.21-96,181.95-30,378.32

Finding the Fourth Proportional to 64,120.21, 96,181.95 and 30,378.32

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Solution

The fourth proportional to 64,120.21, 96,181.95 and 30,378.32 is: 45,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,120.21 : 96,181.95 = 30,378.32 : x
  2. Step 2: Convert to fraction form
    64,120.21/96,181.95 = 30,378.32/x
  3. Step 3: Cross multiply
    64,120.21x = 96,181.95 × 30,378.32
  4. Step 4: Simplify right side
    64,120.21x = 2,921,846,590.04
  5. Step 5: Solve for x
    x = 2,921,846,590.04/64,120.21
  6. Step 6: Final answer
    x = 45,568.26

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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.