Home / 52,571.21-72,548.40-28,697.90

Finding the Fourth Proportional to 52,571.21, 72,548.40 and 28,697.90

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Solution

The fourth proportional to 52,571.21, 72,548.40 and 28,697.90 is: 39,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,571.21 : 72,548.40 = 28,697.90 : x
  2. Step 2: Convert to fraction form
    52,571.21/72,548.40 = 28,697.90/x
  3. Step 3: Cross multiply
    52,571.21x = 72,548.40 × 28,697.90
  4. Step 4: Simplify right side
    52,571.21x = 2,081,986,365.62
  5. Step 5: Solve for x
    x = 2,081,986,365.62/52,571.21
  6. Step 6: Final answer
    x = 39,603.17

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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.