Home / 74,141.42-102,315.23-40,149.94

Finding the Fourth Proportional to 74,141.42, 102,315.23 and 40,149.94

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Solution

The fourth proportional to 74,141.42, 102,315.23 and 40,149.94 is: 55,406.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,141.42 : 102,315.23 = 40,149.94 : x
  2. Step 2: Convert to fraction form
    74,141.42/102,315.23 = 40,149.94/x
  3. Step 3: Cross multiply
    74,141.42x = 102,315.23 × 40,149.94
  4. Step 4: Simplify right side
    74,141.42x = 4,107,950,423.29
  5. Step 5: Solve for x
    x = 4,107,950,423.29/74,141.42
  6. Step 6: Final answer
    x = 55,406.96

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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.