Home / 89,669.43-123,739.45-49,384.89

Finding the Fourth Proportional to 89,669.43, 123,739.45 and 49,384.89

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Solution

The fourth proportional to 89,669.43, 123,739.45 and 49,384.89 is: 68,148.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,669.43 : 123,739.45 = 49,384.89 : x
  2. Step 2: Convert to fraction form
    89,669.43/123,739.45 = 49,384.89/x
  3. Step 3: Cross multiply
    89,669.43x = 123,739.45 × 49,384.89
  4. Step 4: Simplify right side
    89,669.43x = 6,110,859,003.45
  5. Step 5: Solve for x
    x = 6,110,859,003.45/89,669.43
  6. Step 6: Final answer
    x = 68,148.74

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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.