Home / 82,289.10-123,387.48-26,118.74

Finding the Fourth Proportional to 82,289.10, 123,387.48 and 26,118.74

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Solution

The fourth proportional to 82,289.10, 123,387.48 and 26,118.74 is: 39,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,289.10 : 123,387.48 = 26,118.74 : x
  2. Step 2: Convert to fraction form
    82,289.10/123,387.48 = 26,118.74/x
  3. Step 3: Cross multiply
    82,289.10x = 123,387.48 × 26,118.74
  4. Step 4: Simplify right side
    82,289.10x = 3,222,725,509.38
  5. Step 5: Solve for x
    x = 3,222,725,509.38/82,289.10
  6. Step 6: Final answer
    x = 39,163.46

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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.