Home / 45,723.28-63,085.96-31,387.49

Finding the Fourth Proportional to 45,723.28, 63,085.96 and 31,387.49

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Solution

The fourth proportional to 45,723.28, 63,085.96 and 31,387.49 is: 43,306.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,723.28 : 63,085.96 = 31,387.49 : x
  2. Step 2: Convert to fraction form
    45,723.28/63,085.96 = 31,387.49/x
  3. Step 3: Cross multiply
    45,723.28x = 63,085.96 × 31,387.49
  4. Step 4: Simplify right side
    45,723.28x = 1,980,109,938.64
  5. Step 5: Solve for x
    x = 1,980,109,938.64/45,723.28
  6. Step 6: Final answer
    x = 43,306.38

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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.