Home / 89,457.12-123,448.32-49,170.96

Finding the Fourth Proportional to 89,457.12, 123,448.32 and 49,170.96

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Solution

The fourth proportional to 89,457.12, 123,448.32 and 49,170.96 is: 67,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,457.12 : 123,448.32 = 49,170.96 : x
  2. Step 2: Convert to fraction form
    89,457.12/123,448.32 = 49,170.96/x
  3. Step 3: Cross multiply
    89,457.12x = 123,448.32 × 49,170.96
  4. Step 4: Simplify right side
    89,457.12x = 6,070,072,404.79
  5. Step 5: Solve for x
    x = 6,070,072,404.79/89,457.12
  6. Step 6: Final answer
    x = 67,854.55

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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.