Home / 81,511.04-122,271.52-22,344.32

Finding the Fourth Proportional to 81,511.04, 122,271.52 and 22,344.32

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Solution

The fourth proportional to 81,511.04, 122,271.52 and 22,344.32 is: 33,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,511.04 : 122,271.52 = 22,344.32 : x
  2. Step 2: Convert to fraction form
    81,511.04/122,271.52 = 22,344.32/x
  3. Step 3: Cross multiply
    81,511.04x = 122,271.52 × 22,344.32
  4. Step 4: Simplify right side
    81,511.04x = 2,732,073,969.77
  5. Step 5: Solve for x
    x = 2,732,073,969.77/81,511.04
  6. Step 6: Final answer
    x = 33,517.84

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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.