Home / 52,771.32-72,821.70-28,897.92

Finding the Fourth Proportional to 52,771.32, 72,821.70 and 28,897.92

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Solution

The fourth proportional to 52,771.32, 72,821.70 and 28,897.92 is: 39,877.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,771.32 : 72,821.70 = 28,897.92 : x
  2. Step 2: Convert to fraction form
    52,771.32/72,821.70 = 28,897.92/x
  3. Step 3: Cross multiply
    52,771.32x = 72,821.70 × 28,897.92
  4. Step 4: Simplify right side
    52,771.32x = 2,104,395,660.86
  5. Step 5: Solve for x
    x = 2,104,395,660.86/52,771.32
  6. Step 6: Final answer
    x = 39,877.64

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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.