Home / 52,105.90-71,905.58-28,231.16

Finding the Fourth Proportional to 52,105.90, 71,905.58 and 28,231.16

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Solution

The fourth proportional to 52,105.90, 71,905.58 and 28,231.16 is: 38,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,105.90 : 71,905.58 = 28,231.16 : x
  2. Step 2: Convert to fraction form
    52,105.90/71,905.58 = 28,231.16/x
  3. Step 3: Cross multiply
    52,105.90x = 71,905.58 × 28,231.16
  4. Step 4: Simplify right side
    52,105.90x = 2,029,977,933.87
  5. Step 5: Solve for x
    x = 2,029,977,933.87/52,105.90
  6. Step 6: Final answer
    x = 38,958.70

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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.