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Finding the Fourth Proportional to 70,804.64, 106,207.25 and 28,685.52

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Solution

The fourth proportional to 70,804.64, 106,207.25 and 28,685.52 is: 43,028.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,804.64 : 106,207.25 = 28,685.52 : x
  2. Step 2: Convert to fraction form
    70,804.64/106,207.25 = 28,685.52/x
  3. Step 3: Cross multiply
    70,804.64x = 106,207.25 × 28,685.52
  4. Step 4: Simplify right side
    70,804.64x = 3,046,610,050.59
  5. Step 5: Solve for x
    x = 3,046,610,050.59/70,804.64
  6. Step 6: Final answer
    x = 43,028.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.