Home / 82,835.82-124,253.72-20,506.32

Finding the Fourth Proportional to 82,835.82, 124,253.72 and 20,506.32

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Solution

The fourth proportional to 82,835.82, 124,253.72 and 20,506.32 is: 30,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,835.82 : 124,253.72 = 20,506.32 : x
  2. Step 2: Convert to fraction form
    82,835.82/124,253.72 = 20,506.32/x
  3. Step 3: Cross multiply
    82,835.82x = 124,253.72 × 20,506.32
  4. Step 4: Simplify right side
    82,835.82x = 2,547,986,543.51
  5. Step 5: Solve for x
    x = 2,547,986,543.51/82,835.82
  6. Step 6: Final answer
    x = 30,759.48

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Similar ratio
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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.