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Finding the Fourth Proportional to 83,683.94, 125,525.84 and 21,354.44

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Solution

The fourth proportional to 83,683.94, 125,525.84 and 21,354.44 is: 32,031.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,683.94 : 125,525.84 = 21,354.44 : x
  2. Step 2: Convert to fraction form
    83,683.94/125,525.84 = 21,354.44/x
  3. Step 3: Cross multiply
    83,683.94x = 125,525.84 × 21,354.44
  4. Step 4: Simplify right side
    83,683.94x = 2,680,534,072.12
  5. Step 5: Solve for x
    x = 2,680,534,072.12/83,683.94
  6. Step 6: Final answer
    x = 32,031.64

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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.