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Finding the Fourth Proportional to 64,363.35, 88,821.45 and 39,212.85

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Solution

The fourth proportional to 64,363.35, 88,821.45 and 39,212.85 is: 54,113.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,363.35 : 88,821.45 = 39,212.85 : x
  2. Step 2: Convert to fraction form
    64,363.35/88,821.45 = 39,212.85/x
  3. Step 3: Cross multiply
    64,363.35x = 88,821.45 × 39,212.85
  4. Step 4: Simplify right side
    64,363.35x = 3,482,942,195.63
  5. Step 5: Solve for x
    x = 3,482,942,195.63/64,363.35
  6. Step 6: Final answer
    x = 54,113.75

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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.