Home / 82,516.02-123,772.95-20,187.06

Finding the Fourth Proportional to 82,516.02, 123,772.95 and 20,187.06

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Solution

The fourth proportional to 82,516.02, 123,772.95 and 20,187.06 is: 30,280.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,516.02 : 123,772.95 = 20,187.06 : x
  2. Step 2: Convert to fraction form
    82,516.02/123,772.95 = 20,187.06/x
  3. Step 3: Cross multiply
    82,516.02x = 123,772.95 × 20,187.06
  4. Step 4: Simplify right side
    82,516.02x = 2,498,611,968.03
  5. Step 5: Solve for x
    x = 2,498,611,968.03/82,516.02
  6. Step 6: Final answer
    x = 30,280.33

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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.