Home / 81,436.21-122,154.35-22,267.40

Finding the Fourth Proportional to 81,436.21, 122,154.35 and 22,267.40

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Solution

The fourth proportional to 81,436.21, 122,154.35 and 22,267.40 is: 33,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,436.21 : 122,154.35 = 22,267.40 : x
  2. Step 2: Convert to fraction form
    81,436.21/122,154.35 = 22,267.40/x
  3. Step 3: Cross multiply
    81,436.21x = 122,154.35 × 22,267.40
  4. Step 4: Simplify right side
    81,436.21x = 2,720,059,051.08
  5. Step 5: Solve for x
    x = 2,720,059,051.08/81,436.21
  6. Step 6: Final answer
    x = 33,401.10

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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.