Home / 85,481.04-128,181.30-49,952.62

Finding the Fourth Proportional to 85,481.04, 128,181.30 and 49,952.62

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Solution

The fourth proportional to 85,481.04, 128,181.30 and 49,952.62 is: 74,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,481.04 : 128,181.30 = 49,952.62 : x
  2. Step 2: Convert to fraction form
    85,481.04/128,181.30 = 49,952.62/x
  3. Step 3: Cross multiply
    85,481.04x = 128,181.30 × 49,952.62
  4. Step 4: Simplify right side
    85,481.04x = 6,402,991,770.01
  5. Step 5: Solve for x
    x = 6,402,991,770.01/85,481.04
  6. Step 6: Final answer
    x = 74,905.40

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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.