Home / 89,669.35-123,738.96-51,426.92

Finding the Fourth Proportional to 89,669.35, 123,738.96 and 51,426.92

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Solution

The fourth proportional to 89,669.35, 123,738.96 and 51,426.92 is: 70,966.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,669.35 : 123,738.96 = 51,426.92 : x
  2. Step 2: Convert to fraction form
    89,669.35/123,738.96 = 51,426.92/x
  3. Step 3: Cross multiply
    89,669.35x = 123,738.96 × 51,426.92
  4. Step 4: Simplify right side
    89,669.35x = 6,363,513,596.80
  5. Step 5: Solve for x
    x = 6,363,513,596.80/89,669.35
  6. Step 6: Final answer
    x = 70,966.43

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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.