Home / 89,041.80-122,875.38-48,755.10

Finding the Fourth Proportional to 89,041.80, 122,875.38 and 48,755.10

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Solution

The fourth proportional to 89,041.80, 122,875.38 and 48,755.10 is: 67,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,041.80 : 122,875.38 = 48,755.10 : x
  2. Step 2: Convert to fraction form
    89,041.80/122,875.38 = 48,755.10/x
  3. Step 3: Cross multiply
    89,041.80x = 122,875.38 × 48,755.10
  4. Step 4: Simplify right side
    89,041.80x = 5,990,801,439.44
  5. Step 5: Solve for x
    x = 5,990,801,439.44/89,041.80
  6. Step 6: Final answer
    x = 67,280.78

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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.