Home / 89,300.28-123,169.41-59,111.46

Finding the Fourth Proportional to 89,300.28, 123,169.41 and 59,111.46

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Solution

The fourth proportional to 89,300.28, 123,169.41 and 59,111.46 is: 81,530.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,300.28 : 123,169.41 = 59,111.46 : x
  2. Step 2: Convert to fraction form
    89,300.28/123,169.41 = 59,111.46/x
  3. Step 3: Cross multiply
    89,300.28x = 123,169.41 × 59,111.46
  4. Step 4: Simplify right side
    89,300.28x = 7,280,723,652.44
  5. Step 5: Solve for x
    x = 7,280,723,652.44/89,300.28
  6. Step 6: Final answer
    x = 81,530.80

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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.