Home / 81,415.32-122,113.26-22,256.16

Finding the Fourth Proportional to 81,415.32, 122,113.26 and 22,256.16

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Solution

The fourth proportional to 81,415.32, 122,113.26 and 22,256.16 is: 33,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,415.32 : 122,113.26 = 22,256.16 : x
  2. Step 2: Convert to fraction form
    81,415.32/122,113.26 = 22,256.16/x
  3. Step 3: Cross multiply
    81,415.32x = 122,113.26 × 22,256.16
  4. Step 4: Simplify right side
    81,415.32x = 2,717,772,252.68
  5. Step 5: Solve for x
    x = 2,717,772,252.68/81,415.32
  6. Step 6: Final answer
    x = 33,381.58

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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.