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Finding the Fourth Proportional to 52,649.85, 72,648.39 and 29,989.28

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Solution

The fourth proportional to 52,649.85, 72,648.39 and 29,989.28 is: 41,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,649.85 : 72,648.39 = 29,989.28 : x
  2. Step 2: Convert to fraction form
    52,649.85/72,648.39 = 29,989.28/x
  3. Step 3: Cross multiply
    52,649.85x = 72,648.39 × 29,989.28
  4. Step 4: Simplify right side
    52,649.85x = 2,178,672,909.26
  5. Step 5: Solve for x
    x = 2,178,672,909.26/52,649.85
  6. Step 6: Final answer
    x = 41,380.42

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1.5x scale

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.