Home / 52,811.88-72,880.39-28,939.46

Finding the Fourth Proportional to 52,811.88, 72,880.39 and 28,939.46

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Solution

The fourth proportional to 52,811.88, 72,880.39 and 28,939.46 is: 39,936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.88 : 72,880.39 = 28,939.46 : x
  2. Step 2: Convert to fraction form
    52,811.88/72,880.39 = 28,939.46/x
  3. Step 3: Cross multiply
    52,811.88x = 72,880.39 × 28,939.46
  4. Step 4: Simplify right side
    52,811.88x = 2,109,119,131.19
  5. Step 5: Solve for x
    x = 2,109,119,131.19/52,811.88
  6. Step 6: Final answer
    x = 39,936.45

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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.