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Finding the Fourth Proportional to 51,263.08, 70,743.06 and 28,907.08

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Solution

The fourth proportional to 51,263.08, 70,743.06 and 28,907.08 is: 39,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,263.08 : 70,743.06 = 28,907.08 : x
  2. Step 2: Convert to fraction form
    51,263.08/70,743.06 = 28,907.08/x
  3. Step 3: Cross multiply
    51,263.08x = 70,743.06 × 28,907.08
  4. Step 4: Simplify right side
    51,263.08x = 2,044,975,294.86
  5. Step 5: Solve for x
    x = 2,044,975,294.86/51,263.08
  6. Step 6: Final answer
    x = 39,891.78

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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.