Home / 83,861.84-115,731.52-45,623.76

Finding the Fourth Proportional to 83,861.84, 115,731.52 and 45,623.76

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Solution

The fourth proportional to 83,861.84, 115,731.52 and 45,623.76 is: 62,961.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,861.84 : 115,731.52 = 45,623.76 : x
  2. Step 2: Convert to fraction form
    83,861.84/115,731.52 = 45,623.76/x
  3. Step 3: Cross multiply
    83,861.84x = 115,731.52 × 45,623.76
  4. Step 4: Simplify right side
    83,861.84x = 5,280,107,092.92
  5. Step 5: Solve for x
    x = 5,280,107,092.92/83,861.84
  6. Step 6: Final answer
    x = 62,961.98

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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.