Home / 57,073.26-78,763.41-31,579.20

Finding the Fourth Proportional to 57,073.26, 78,763.41 and 31,579.20

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Solution

The fourth proportional to 57,073.26, 78,763.41 and 31,579.20 is: 43,580.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,073.26 : 78,763.41 = 31,579.20 : x
  2. Step 2: Convert to fraction form
    57,073.26/78,763.41 = 31,579.20/x
  3. Step 3: Cross multiply
    57,073.26x = 78,763.41 × 31,579.20
  4. Step 4: Simplify right side
    57,073.26x = 2,487,285,477.07
  5. Step 5: Solve for x
    x = 2,487,285,477.07/57,073.26
  6. Step 6: Final answer
    x = 43,580.57

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1.5x scale

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.