Home / 74,071.38-102,217.92-40,079.82

Finding the Fourth Proportional to 74,071.38, 102,217.92 and 40,079.82

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Solution

The fourth proportional to 74,071.38, 102,217.92 and 40,079.82 is: 55,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,071.38 : 102,217.92 = 40,079.82 : x
  2. Step 2: Convert to fraction form
    74,071.38/102,217.92 = 40,079.82/x
  3. Step 3: Cross multiply
    74,071.38x = 102,217.92 × 40,079.82
  4. Step 4: Simplify right side
    74,071.38x = 4,096,875,834.37
  5. Step 5: Solve for x
    x = 4,096,875,834.37/74,071.38
  6. Step 6: Final answer
    x = 55,309.84

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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.