Home / 75,845.96-113,755.98-20,429

Finding the Fourth Proportional to 75,845.96, 113,755.98 and 20,429

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Solution

The fourth proportional to 75,845.96, 113,755.98 and 20,429 is: 30,640.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,845.96 : 113,755.98 = 20,429 : x
  2. Step 2: Convert to fraction form
    75,845.96/113,755.98 = 20,429/x
  3. Step 3: Cross multiply
    75,845.96x = 113,755.98 × 20,429
  4. Step 4: Simplify right side
    75,845.96x = 2,323,920,915.42
  5. Step 5: Solve for x
    x = 2,323,920,915.42/75,845.96
  6. Step 6: Final answer
    x = 30,640.01

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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.