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Finding the Fourth Proportional to 83,482.50, 115,205.85 and 45,755.94

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Solution

The fourth proportional to 83,482.50, 115,205.85 and 45,755.94 is: 63,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,482.50 : 115,205.85 = 45,755.94 : x
  2. Step 2: Convert to fraction form
    83,482.50/115,205.85 = 45,755.94/x
  3. Step 3: Cross multiply
    83,482.50x = 115,205.85 × 45,755.94
  4. Step 4: Simplify right side
    83,482.50x = 5,271,351,960.25
  5. Step 5: Solve for x
    x = 5,271,351,960.25/83,482.50
  6. Step 6: Final answer
    x = 63,143.20

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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.