Home / 57,421.10-79,243.77-31,930.05

Finding the Fourth Proportional to 57,421.10, 79,243.77 and 31,930.05

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Solution

The fourth proportional to 57,421.10, 79,243.77 and 31,930.05 is: 44,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.10 : 79,243.77 = 31,930.05 : x
  2. Step 2: Convert to fraction form
    57,421.10/79,243.77 = 31,930.05/x
  3. Step 3: Cross multiply
    57,421.10x = 79,243.77 × 31,930.05
  4. Step 4: Simplify right side
    57,421.10x = 2,530,257,329.84
  5. Step 5: Solve for x
    x = 2,530,257,329.84/57,421.10
  6. Step 6: Final answer
    x = 44,064.94

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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.