Home / 85,091.04-127,715.27-43,000.74

Finding the Fourth Proportional to 85,091.04, 127,715.27 and 43,000.74

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Solution

The fourth proportional to 85,091.04, 127,715.27 and 43,000.74 is: 64,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,091.04 : 127,715.27 = 43,000.74 : x
  2. Step 2: Convert to fraction form
    85,091.04/127,715.27 = 43,000.74/x
  3. Step 3: Cross multiply
    85,091.04x = 127,715.27 × 43,000.74
  4. Step 4: Simplify right side
    85,091.04x = 5,491,850,904.30
  5. Step 5: Solve for x
    x = 5,491,850,904.30/85,091.04
  6. Step 6: Final answer
    x = 64,540.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.