Home / 39,757.19-54,808.45-31,619.50

Finding the Fourth Proportional to 39,757.19, 54,808.45 and 31,619.50

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Solution

The fourth proportional to 39,757.19, 54,808.45 and 31,619.50 is: 43,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.19 : 54,808.45 = 31,619.50 : x
  2. Step 2: Convert to fraction form
    39,757.19/54,808.45 = 31,619.50/x
  3. Step 3: Cross multiply
    39,757.19x = 54,808.45 × 31,619.50
  4. Step 4: Simplify right side
    39,757.19x = 1,733,015,784.78
  5. Step 5: Solve for x
    x = 1,733,015,784.78/39,757.19
  6. Step 6: Final answer
    x = 43,590.00

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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.