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Finding the Fourth Proportional to 51,263.58, 70,743.75 and 28,907.58

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Solution

The fourth proportional to 51,263.58, 70,743.75 and 28,907.58 is: 39,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,263.58 : 70,743.75 = 28,907.58 : x
  2. Step 2: Convert to fraction form
    51,263.58/70,743.75 = 28,907.58/x
  3. Step 3: Cross multiply
    51,263.58x = 70,743.75 × 28,907.58
  4. Step 4: Simplify right side
    51,263.58x = 2,045,030,612.63
  5. Step 5: Solve for x
    x = 2,045,030,612.63/51,263.58
  6. Step 6: Final answer
    x = 39,892.47

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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.