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Finding the Fourth Proportional to 71,083.61, 106,533.37 and 28,914.74

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Solution

The fourth proportional to 71,083.61, 106,533.37 and 28,914.74 is: 43,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,083.61 : 106,533.37 = 28,914.74 : x
  2. Step 2: Convert to fraction form
    71,083.61/106,533.37 = 28,914.74/x
  3. Step 3: Cross multiply
    71,083.61x = 106,533.37 × 28,914.74
  4. Step 4: Simplify right side
    71,083.61x = 3,080,384,017.63
  5. Step 5: Solve for x
    x = 3,080,384,017.63/71,083.61
  6. Step 6: Final answer
    x = 43,334.66

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1.5x scale

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.