Home / 57,421.85-79,244.81-31,930.80

Finding the Fourth Proportional to 57,421.85, 79,244.81 and 31,930.80

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Solution

The fourth proportional to 57,421.85, 79,244.81 and 31,930.80 is: 44,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,421.85 : 79,244.81 = 31,930.80 : x
  2. Step 2: Convert to fraction form
    57,421.85/79,244.81 = 31,930.80/x
  3. Step 3: Cross multiply
    57,421.85x = 79,244.81 × 31,930.80
  4. Step 4: Simplify right side
    57,421.85x = 2,530,350,019.49
  5. Step 5: Solve for x
    x = 2,530,350,019.49/57,421.85
  6. Step 6: Final answer
    x = 44,065.98

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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.