Home / 89,455.16-123,451.08-49,170.36

Finding the Fourth Proportional to 89,455.16, 123,451.08 and 49,170.36

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Solution

The fourth proportional to 89,455.16, 123,451.08 and 49,170.36 is: 67,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,455.16 : 123,451.08 = 49,170.36 : x
  2. Step 2: Convert to fraction form
    89,455.16/123,451.08 = 49,170.36/x
  3. Step 3: Cross multiply
    89,455.16x = 123,451.08 × 49,170.36
  4. Step 4: Simplify right side
    89,455.16x = 6,070,134,045.99
  5. Step 5: Solve for x
    x = 6,070,134,045.99/89,455.16
  6. Step 6: Final answer
    x = 67,856.72

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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.