Home / 81,000.34-111,778.88-44,705.20

Finding the Fourth Proportional to 81,000.34, 111,778.88 and 44,705.20

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Solution

The fourth proportional to 81,000.34, 111,778.88 and 44,705.20 is: 61,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,000.34 : 111,778.88 = 44,705.20 : x
  2. Step 2: Convert to fraction form
    81,000.34/111,778.88 = 44,705.20/x
  3. Step 3: Cross multiply
    81,000.34x = 111,778.88 × 44,705.20
  4. Step 4: Simplify right side
    81,000.34x = 4,997,097,186.18
  5. Step 5: Solve for x
    x = 4,997,097,186.18/81,000.34
  6. Step 6: Final answer
    x = 61,692.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.