Home / 54,930.96-75,807.90-31,059.86

Finding the Fourth Proportional to 54,930.96, 75,807.90 and 31,059.86

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Solution

The fourth proportional to 54,930.96, 75,807.90 and 31,059.86 is: 42,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,930.96 : 75,807.90 = 31,059.86 : x
  2. Step 2: Convert to fraction form
    54,930.96/75,807.90 = 31,059.86/x
  3. Step 3: Cross multiply
    54,930.96x = 75,807.90 × 31,059.86
  4. Step 4: Simplify right side
    54,930.96x = 2,354,582,381.85
  5. Step 5: Solve for x
    x = 2,354,582,381.85/54,930.96
  6. Step 6: Final answer
    x = 42,864.40

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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.