Home / 53,869.49-80,777.21-31,387.44

Finding the Fourth Proportional to 53,869.49, 80,777.21 and 31,387.44

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Solution

The fourth proportional to 53,869.49, 80,777.21 and 31,387.44 is: 47,065.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,869.49 : 80,777.21 = 31,387.44 : x
  2. Step 2: Convert to fraction form
    53,869.49/80,777.21 = 31,387.44/x
  3. Step 3: Cross multiply
    53,869.49x = 80,777.21 × 31,387.44
  4. Step 4: Simplify right side
    53,869.49x = 2,535,389,612.13
  5. Step 5: Solve for x
    x = 2,535,389,612.13/53,869.49
  6. Step 6: Final answer
    x = 47,065.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.