Home / 85,104.11-127,656.32-35,129.34

Finding the Fourth Proportional to 85,104.11, 127,656.32 and 35,129.34

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Solution

The fourth proportional to 85,104.11, 127,656.32 and 35,129.34 is: 52,694.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,104.11 : 127,656.32 = 35,129.34 : x
  2. Step 2: Convert to fraction form
    85,104.11/127,656.32 = 35,129.34/x
  3. Step 3: Cross multiply
    85,104.11x = 127,656.32 × 35,129.34
  4. Step 4: Simplify right side
    85,104.11x = 4,484,482,092.78
  5. Step 5: Solve for x
    x = 4,484,482,092.78/85,104.11
  6. Step 6: Final answer
    x = 52,694.07

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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.