Home / 52,109.82-78,164.73-12,666.96

Finding the Fourth Proportional to 52,109.82, 78,164.73 and 12,666.96

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Solution

The fourth proportional to 52,109.82, 78,164.73 and 12,666.96 is: 19,000.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,109.82 : 78,164.73 = 12,666.96 : x
  2. Step 2: Convert to fraction form
    52,109.82/78,164.73 = 12,666.96/x
  3. Step 3: Cross multiply
    52,109.82x = 78,164.73 × 12,666.96
  4. Step 4: Simplify right side
    52,109.82x = 990,109,508.32
  5. Step 5: Solve for x
    x = 990,109,508.32/52,109.82
  6. Step 6: Final answer
    x = 19,000.44

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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.