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Finding the Fourth Proportional to 85,041.83, 127,520.82 and 28,861.44

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Solution

The fourth proportional to 85,041.83, 127,520.82 and 28,861.44 is: 43,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,041.83 : 127,520.82 = 28,861.44 : x
  2. Step 2: Convert to fraction form
    85,041.83/127,520.82 = 28,861.44/x
  3. Step 3: Cross multiply
    85,041.83x = 127,520.82 × 28,861.44
  4. Step 4: Simplify right side
    85,041.83x = 3,680,434,495.18
  5. Step 5: Solve for x
    x = 3,680,434,495.18/85,041.83
  6. Step 6: Final answer
    x = 43,277.93

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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.