Home / 89,708.08-123,792.60-49,421.04

Finding the Fourth Proportional to 89,708.08, 123,792.60 and 49,421.04

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Solution

The fourth proportional to 89,708.08, 123,792.60 and 49,421.04 is: 68,198.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,708.08 : 123,792.60 = 49,421.04 : x
  2. Step 2: Convert to fraction form
    89,708.08/123,792.60 = 49,421.04/x
  3. Step 3: Cross multiply
    89,708.08x = 123,792.60 × 49,421.04
  4. Step 4: Simplify right side
    89,708.08x = 6,117,959,036.30
  5. Step 5: Solve for x
    x = 6,117,959,036.30/89,708.08
  6. Step 6: Final answer
    x = 68,198.53

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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.