Home / 52,427.07-78,661.40-19,149.30

Finding the Fourth Proportional to 52,427.07, 78,661.40 and 19,149.30

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Solution

The fourth proportional to 52,427.07, 78,661.40 and 19,149.30 is: 28,731.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,427.07 : 78,661.40 = 19,149.30 : x
  2. Step 2: Convert to fraction form
    52,427.07/78,661.40 = 19,149.30/x
  3. Step 3: Cross multiply
    52,427.07x = 78,661.40 × 19,149.30
  4. Step 4: Simplify right side
    52,427.07x = 1,506,310,651.27
  5. Step 5: Solve for x
    x = 1,506,310,651.27/52,427.07
  6. Step 6: Final answer
    x = 28,731.54

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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.