Home / 55,331.38-76,354.68-31,455.42

Finding the Fourth Proportional to 55,331.38, 76,354.68 and 31,455.42

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Solution

The fourth proportional to 55,331.38, 76,354.68 and 31,455.42 is: 43,406.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331.38 : 76,354.68 = 31,455.42 : x
  2. Step 2: Convert to fraction form
    55,331.38/76,354.68 = 31,455.42/x
  3. Step 3: Cross multiply
    55,331.38x = 76,354.68 × 31,455.42
  4. Step 4: Simplify right side
    55,331.38x = 2,401,768,528.37
  5. Step 5: Solve for x
    x = 2,401,768,528.37/55,331.38
  6. Step 6: Final answer
    x = 43,406.99

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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.