Home / 82,041.12-123,090.32-25,889.92

Finding the Fourth Proportional to 82,041.12, 123,090.32 and 25,889.92

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Solution

The fourth proportional to 82,041.12, 123,090.32 and 25,889.92 is: 38,843.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,041.12 : 123,090.32 = 25,889.92 : x
  2. Step 2: Convert to fraction form
    82,041.12/123,090.32 = 25,889.92/x
  3. Step 3: Cross multiply
    82,041.12x = 123,090.32 × 25,889.92
  4. Step 4: Simplify right side
    82,041.12x = 3,186,798,537.57
  5. Step 5: Solve for x
    x = 3,186,798,537.57/82,041.12
  6. Step 6: Final answer
    x = 38,843.92

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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.