Home / 89,742.43-123,845.40-49,457.67

Finding the Fourth Proportional to 89,742.43, 123,845.40 and 49,457.67

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Solution

The fourth proportional to 89,742.43, 123,845.40 and 49,457.67 is: 68,252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,742.43 : 123,845.40 = 49,457.67 : x
  2. Step 2: Convert to fraction form
    89,742.43/123,845.40 = 49,457.67/x
  3. Step 3: Cross multiply
    89,742.43x = 123,845.40 × 49,457.67
  4. Step 4: Simplify right side
    89,742.43x = 6,125,104,459.80
  5. Step 5: Solve for x
    x = 6,125,104,459.80/89,742.43
  6. Step 6: Final answer
    x = 68,252.05

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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.