Home / 89,555.88-123,587.11-49,268.77

Finding the Fourth Proportional to 89,555.88, 123,587.11 and 49,268.77

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Solution

The fourth proportional to 89,555.88, 123,587.11 and 49,268.77 is: 67,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,555.88 : 123,587.11 = 49,268.77 : x
  2. Step 2: Convert to fraction form
    89,555.88/123,587.11 = 49,268.77/x
  3. Step 3: Cross multiply
    89,555.88x = 123,587.11 × 49,268.77
  4. Step 4: Simplify right side
    89,555.88x = 6,088,984,651.21
  5. Step 5: Solve for x
    x = 6,088,984,651.21/89,555.88
  6. Step 6: Final answer
    x = 67,990.90

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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.