Home / 89,314.04-123,311.12-55,358.64

Finding the Fourth Proportional to 89,314.04, 123,311.12 and 55,358.64

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Solution

The fourth proportional to 89,314.04, 123,311.12 and 55,358.64 is: 76,430.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,314.04 : 123,311.12 = 55,358.64 : x
  2. Step 2: Convert to fraction form
    89,314.04/123,311.12 = 55,358.64/x
  3. Step 3: Cross multiply
    89,314.04x = 123,311.12 × 55,358.64
  4. Step 4: Simplify right side
    89,314.04x = 6,826,335,623.28
  5. Step 5: Solve for x
    x = 6,826,335,623.28/89,314.04
  6. Step 6: Final answer
    x = 76,430.71

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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.