Home / 82,017.89-123,026.84-19,688.39

Finding the Fourth Proportional to 82,017.89, 123,026.84 and 19,688.39

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Solution

The fourth proportional to 82,017.89, 123,026.84 and 19,688.39 is: 29,532.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,017.89 : 123,026.84 = 19,688.39 : x
  2. Step 2: Convert to fraction form
    82,017.89/123,026.84 = 19,688.39/x
  3. Step 3: Cross multiply
    82,017.89x = 123,026.84 × 19,688.39
  4. Step 4: Simplify right side
    82,017.89x = 2,422,200,763.18
  5. Step 5: Solve for x
    x = 2,422,200,763.18/82,017.89
  6. Step 6: Final answer
    x = 29,532.59

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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.