Home / 51,428.97-70,968.64-28,764.04

Finding the Fourth Proportional to 51,428.97, 70,968.64 and 28,764.04

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Solution

The fourth proportional to 51,428.97, 70,968.64 and 28,764.04 is: 39,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,428.97 : 70,968.64 = 28,764.04 : x
  2. Step 2: Convert to fraction form
    51,428.97/70,968.64 = 28,764.04/x
  3. Step 3: Cross multiply
    51,428.97x = 70,968.64 × 28,764.04
  4. Step 4: Simplify right side
    51,428.97x = 2,041,344,444.86
  5. Step 5: Solve for x
    x = 2,041,344,444.86/51,428.97
  6. Step 6: Final answer
    x = 39,692.50

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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.