Home / 82,735.27-123,980.27-47,178.30

Finding the Fourth Proportional to 82,735.27, 123,980.27 and 47,178.30

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Solution

The fourth proportional to 82,735.27, 123,980.27 and 47,178.30 is: 70,697.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,735.27 : 123,980.27 = 47,178.30 : x
  2. Step 2: Convert to fraction form
    82,735.27/123,980.27 = 47,178.30/x
  3. Step 3: Cross multiply
    82,735.27x = 123,980.27 × 47,178.30
  4. Step 4: Simplify right side
    82,735.27x = 5,849,178,169.16
  5. Step 5: Solve for x
    x = 5,849,178,169.16/82,735.27
  6. Step 6: Final answer
    x = 70,697.51

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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.