Home / 49,122.16-73,621.58-21,009.15

Finding the Fourth Proportional to 49,122.16, 73,621.58 and 21,009.15

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Solution

The fourth proportional to 49,122.16, 73,621.58 and 21,009.15 is: 31,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,122.16 : 73,621.58 = 21,009.15 : x
  2. Step 2: Convert to fraction form
    49,122.16/73,621.58 = 21,009.15/x
  3. Step 3: Cross multiply
    49,122.16x = 73,621.58 × 21,009.15
  4. Step 4: Simplify right side
    49,122.16x = 1,546,726,712.41
  5. Step 5: Solve for x
    x = 1,546,726,712.41/49,122.16
  6. Step 6: Final answer
    x = 31,487.35

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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.