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Finding the Fourth Proportional to 85,162.68, 127,759.41 and 35,215.65

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Solution

The fourth proportional to 85,162.68, 127,759.41 and 35,215.65 is: 52,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,162.68 : 127,759.41 = 35,215.65 : x
  2. Step 2: Convert to fraction form
    85,162.68/127,759.41 = 35,215.65/x
  3. Step 3: Cross multiply
    85,162.68x = 127,759.41 × 35,215.65
  4. Step 4: Simplify right side
    85,162.68x = 4,499,130,666.77
  5. Step 5: Solve for x
    x = 4,499,130,666.77/85,162.68
  6. Step 6: Final answer
    x = 52,829.84

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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.