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Finding the Fourth Proportional to 73,272.25, 109,913.03 and 20,685.84

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Solution

The fourth proportional to 73,272.25, 109,913.03 and 20,685.84 is: 31,030.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,272.25 : 109,913.03 = 20,685.84 : x
  2. Step 2: Convert to fraction form
    73,272.25/109,913.03 = 20,685.84/x
  3. Step 3: Cross multiply
    73,272.25x = 109,913.03 × 20,685.84
  4. Step 4: Simplify right side
    73,272.25x = 2,273,643,352.50
  5. Step 5: Solve for x
    x = 2,273,643,352.50/73,272.25
  6. Step 6: Final answer
    x = 31,030.07

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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.