Home / 52,459.12-78,687.64-19,178.96

Finding the Fourth Proportional to 52,459.12, 78,687.64 and 19,178.96

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Solution

The fourth proportional to 52,459.12, 78,687.64 and 19,178.96 is: 28,768.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,459.12 : 78,687.64 = 19,178.96 : x
  2. Step 2: Convert to fraction form
    52,459.12/78,687.64 = 19,178.96/x
  3. Step 3: Cross multiply
    52,459.12x = 78,687.64 × 19,178.96
  4. Step 4: Simplify right side
    52,459.12x = 1,509,147,100.05
  5. Step 5: Solve for x
    x = 1,509,147,100.05/52,459.12
  6. Step 6: Final answer
    x = 28,768.06

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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.