Home / 74,111.85-102,274.24-40,120.17

Finding the Fourth Proportional to 74,111.85, 102,274.24 and 40,120.17

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Solution

The fourth proportional to 74,111.85, 102,274.24 and 40,120.17 is: 55,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.85 : 102,274.24 = 40,120.17 : x
  2. Step 2: Convert to fraction form
    74,111.85/102,274.24 = 40,120.17/x
  3. Step 3: Cross multiply
    74,111.85x = 102,274.24 × 40,120.17
  4. Step 4: Simplify right side
    74,111.85x = 4,103,259,895.42
  5. Step 5: Solve for x
    x = 4,103,259,895.42/74,111.85
  6. Step 6: Final answer
    x = 55,365.77

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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.