Home / 52,790.49-79,130.12-19,489.23

Finding the Fourth Proportional to 52,790.49, 79,130.12 and 19,489.23

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Solution

The fourth proportional to 52,790.49, 79,130.12 and 19,489.23 is: 29,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,790.49 : 79,130.12 = 19,489.23 : x
  2. Step 2: Convert to fraction form
    52,790.49/79,130.12 = 19,489.23/x
  3. Step 3: Cross multiply
    52,790.49x = 79,130.12 × 19,489.23
  4. Step 4: Simplify right side
    52,790.49x = 1,542,185,011.16
  5. Step 5: Solve for x
    x = 1,542,185,011.16/52,790.49
  6. Step 6: Final answer
    x = 29,213.31

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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.