Home / 85,220.68-127,836.96-26,051.80

Finding the Fourth Proportional to 85,220.68, 127,836.96 and 26,051.80

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Solution

The fourth proportional to 85,220.68, 127,836.96 and 26,051.80 is: 39,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.68 : 127,836.96 = 26,051.80 : x
  2. Step 2: Convert to fraction form
    85,220.68/127,836.96 = 26,051.80/x
  3. Step 3: Cross multiply
    85,220.68x = 127,836.96 × 26,051.80
  4. Step 4: Simplify right side
    85,220.68x = 3,330,382,914.53
  5. Step 5: Solve for x
    x = 3,330,382,914.53/85,220.68
  6. Step 6: Final answer
    x = 39,079.52

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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.