Home / 89,391.12-123,353.64-49,106.60

Finding the Fourth Proportional to 89,391.12, 123,353.64 and 49,106.60

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Solution

The fourth proportional to 89,391.12, 123,353.64 and 49,106.60 is: 67,763.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,391.12 : 123,353.64 = 49,106.60 : x
  2. Step 2: Convert to fraction form
    89,391.12/123,353.64 = 49,106.60/x
  3. Step 3: Cross multiply
    89,391.12x = 123,353.64 × 49,106.60
  4. Step 4: Simplify right side
    89,391.12x = 6,057,477,858.02
  5. Step 5: Solve for x
    x = 6,057,477,858.02/89,391.12
  6. Step 6: Final answer
    x = 67,763.75

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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.