Home / 57,401.99-79,215.70-31,561.63

Finding the Fourth Proportional to 57,401.99, 79,215.70 and 31,561.63

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Solution

The fourth proportional to 57,401.99, 79,215.70 and 31,561.63 is: 43,555.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,401.99 : 79,215.70 = 31,561.63 : x
  2. Step 2: Convert to fraction form
    57,401.99/79,215.70 = 31,561.63/x
  3. Step 3: Cross multiply
    57,401.99x = 79,215.70 × 31,561.63
  4. Step 4: Simplify right side
    57,401.99x = 2,500,176,613.59
  5. Step 5: Solve for x
    x = 2,500,176,613.59/57,401.99
  6. Step 6: Final answer
    x = 43,555.57

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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.