Home / 82,457.74-123,684.18-71,331.58

Finding the Fourth Proportional to 82,457.74, 123,684.18 and 71,331.58

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Solution

The fourth proportional to 82,457.74, 123,684.18 and 71,331.58 is: 106,995.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,457.74 : 123,684.18 = 71,331.58 : x
  2. Step 2: Convert to fraction form
    82,457.74/123,684.18 = 71,331.58/x
  3. Step 3: Cross multiply
    82,457.74x = 123,684.18 × 71,331.58
  4. Step 4: Simplify right side
    82,457.74x = 8,822,587,980.40
  5. Step 5: Solve for x
    x = 8,822,587,980.40/82,457.74
  6. Step 6: Final answer
    x = 106,995.27

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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.