Home / 56,817.24-78,408.20-31,668.36

Finding the Fourth Proportional to 56,817.24, 78,408.20 and 31,668.36

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Solution

The fourth proportional to 56,817.24, 78,408.20 and 31,668.36 is: 43,702.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,817.24 : 78,408.20 = 31,668.36 : x
  2. Step 2: Convert to fraction form
    56,817.24/78,408.20 = 31,668.36/x
  3. Step 3: Cross multiply
    56,817.24x = 78,408.20 × 31,668.36
  4. Step 4: Simplify right side
    56,817.24x = 2,483,059,104.55
  5. Step 5: Solve for x
    x = 2,483,059,104.55/56,817.24
  6. Step 6: Final answer
    x = 43,702.56

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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.