Home / 52,019.12-77,982.12-18,731.36

Finding the Fourth Proportional to 52,019.12, 77,982.12 and 18,731.36

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Solution

The fourth proportional to 52,019.12, 77,982.12 and 18,731.36 is: 28,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,019.12 : 77,982.12 = 18,731.36 : x
  2. Step 2: Convert to fraction form
    52,019.12/77,982.12 = 18,731.36/x
  3. Step 3: Cross multiply
    52,019.12x = 77,982.12 × 18,731.36
  4. Step 4: Simplify right side
    52,019.12x = 1,460,711,163.28
  5. Step 5: Solve for x
    x = 1,460,711,163.28/52,019.12
  6. Step 6: Final answer
    x = 28,080.27

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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.