Home / 89,457.87-123,449.36-49,171.71

Finding the Fourth Proportional to 89,457.87, 123,449.36 and 49,171.71

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Solution

The fourth proportional to 89,457.87, 123,449.36 and 49,171.71 is: 67,855.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,457.87 : 123,449.36 = 49,171.71 : x
  2. Step 2: Convert to fraction form
    89,457.87/123,449.36 = 49,171.71/x
  3. Step 3: Cross multiply
    89,457.87x = 123,449.36 × 49,171.71
  4. Step 4: Simplify right side
    89,457.87x = 6,070,215,883.75
  5. Step 5: Solve for x
    x = 6,070,215,883.75/89,457.87
  6. Step 6: Final answer
    x = 67,855.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.