Home / 61,325.40-84,632.94-40,161.72

Finding the Fourth Proportional to 61,325.40, 84,632.94 and 40,161.72

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Solution

The fourth proportional to 61,325.40, 84,632.94 and 40,161.72 is: 55,425.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,325.40 : 84,632.94 = 40,161.72 : x
  2. Step 2: Convert to fraction form
    61,325.40/84,632.94 = 40,161.72/x
  3. Step 3: Cross multiply
    61,325.40x = 84,632.94 × 40,161.72
  4. Step 4: Simplify right side
    61,325.40x = 3,399,004,439.06
  5. Step 5: Solve for x
    x = 3,399,004,439.06/61,325.40
  6. Step 6: Final answer
    x = 55,425.72

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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.