Home / 82,289.86-123,439.39-23,120.91

Finding the Fourth Proportional to 82,289.86, 123,439.39 and 23,120.91

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Solution

The fourth proportional to 82,289.86, 123,439.39 and 23,120.91 is: 34,682.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,289.86 : 123,439.39 = 23,120.91 : x
  2. Step 2: Convert to fraction form
    82,289.86/123,439.39 = 23,120.91/x
  3. Step 3: Cross multiply
    82,289.86x = 123,439.39 × 23,120.91
  4. Step 4: Simplify right side
    82,289.86x = 2,854,030,968.84
  5. Step 5: Solve for x
    x = 2,854,030,968.84/82,289.86
  6. Step 6: Final answer
    x = 34,682.66

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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.