Home / 52,813.48-72,880.86-28,939.90

Finding the Fourth Proportional to 52,813.48, 72,880.86 and 28,939.90

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Solution

The fourth proportional to 52,813.48, 72,880.86 and 28,939.90 is: 39,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,813.48 : 72,880.86 = 28,939.90 : x
  2. Step 2: Convert to fraction form
    52,813.48/72,880.86 = 28,939.90/x
  3. Step 3: Cross multiply
    52,813.48x = 72,880.86 × 28,939.90
  4. Step 4: Simplify right side
    52,813.48x = 2,109,164,800.31
  5. Step 5: Solve for x
    x = 2,109,164,800.31/52,813.48
  6. Step 6: Final answer
    x = 39,936.11

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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.