Home / 57,059.36-78,745.56-31,909.04

Finding the Fourth Proportional to 57,059.36, 78,745.56 and 31,909.04

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Solution

The fourth proportional to 57,059.36, 78,745.56 and 31,909.04 is: 44,036.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,059.36 : 78,745.56 = 31,909.04 : x
  2. Step 2: Convert to fraction form
    57,059.36/78,745.56 = 31,909.04/x
  3. Step 3: Cross multiply
    57,059.36x = 78,745.56 × 31,909.04
  4. Step 4: Simplify right side
    57,059.36x = 2,512,695,223.86
  5. Step 5: Solve for x
    x = 2,512,695,223.86/57,059.36
  6. Step 6: Final answer
    x = 44,036.51

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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.