Home / 85,302.20-127,953.30-40,906.10

Finding the Fourth Proportional to 85,302.20, 127,953.30 and 40,906.10

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Solution

The fourth proportional to 85,302.20, 127,953.30 and 40,906.10 is: 61,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,302.20 : 127,953.30 = 40,906.10 : x
  2. Step 2: Convert to fraction form
    85,302.20/127,953.30 = 40,906.10/x
  3. Step 3: Cross multiply
    85,302.20x = 127,953.30 × 40,906.10
  4. Step 4: Simplify right side
    85,302.20x = 5,234,070,485.13
  5. Step 5: Solve for x
    x = 5,234,070,485.13/85,302.20
  6. Step 6: Final answer
    x = 61,359.15

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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.