Home / 55,331.59-76,354.89-31,457.75

Finding the Fourth Proportional to 55,331.59, 76,354.89 and 31,457.75

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Solution

The fourth proportional to 55,331.59, 76,354.89 and 31,457.75 is: 43,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,331.59 : 76,354.89 = 31,457.75 : x
  2. Step 2: Convert to fraction form
    55,331.59/76,354.89 = 31,457.75/x
  3. Step 3: Cross multiply
    55,331.59x = 76,354.89 × 31,457.75
  4. Step 4: Simplify right side
    55,331.59x = 2,401,953,231.78
  5. Step 5: Solve for x
    x = 2,401,953,231.78/55,331.59
  6. Step 6: Final answer
    x = 43,410.16

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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.