Home / 52,707.87-79,072.40-19,428.12

Finding the Fourth Proportional to 52,707.87, 79,072.40 and 19,428.12

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Solution

The fourth proportional to 52,707.87, 79,072.40 and 19,428.12 is: 29,146.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,707.87 : 79,072.40 = 19,428.12 : x
  2. Step 2: Convert to fraction form
    52,707.87/79,072.40 = 19,428.12/x
  3. Step 3: Cross multiply
    52,707.87x = 79,072.40 × 19,428.12
  4. Step 4: Simplify right side
    52,707.87x = 1,536,227,978.75
  5. Step 5: Solve for x
    x = 1,536,227,978.75/52,707.87
  6. Step 6: Final answer
    x = 29,146.08

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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.