Home / 52,273.12-78,416.88-18,988.96

Finding the Fourth Proportional to 52,273.12, 78,416.88 and 18,988.96

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Solution

The fourth proportional to 52,273.12, 78,416.88 and 18,988.96 is: 28,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,273.12 : 78,416.88 = 18,988.96 : x
  2. Step 2: Convert to fraction form
    52,273.12/78,416.88 = 18,988.96/x
  3. Step 3: Cross multiply
    52,273.12x = 78,416.88 × 18,988.96
  4. Step 4: Simplify right side
    52,273.12x = 1,489,054,997.64
  5. Step 5: Solve for x
    x = 1,489,054,997.64/52,273.12
  6. Step 6: Final answer
    x = 28,486.06

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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.