Home / 57,043.45-78,726.57-34,394.03

Finding the Fourth Proportional to 57,043.45, 78,726.57 and 34,394.03

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Solution

The fourth proportional to 57,043.45, 78,726.57 and 34,394.03 is: 47,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,043.45 : 78,726.57 = 34,394.03 : x
  2. Step 2: Convert to fraction form
    57,043.45/78,726.57 = 34,394.03/x
  3. Step 3: Cross multiply
    57,043.45x = 78,726.57 × 34,394.03
  4. Step 4: Simplify right side
    57,043.45x = 2,707,723,782.99
  5. Step 5: Solve for x
    x = 2,707,723,782.99/57,043.45
  6. Step 6: Final answer
    x = 47,467.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.