Home / 74,161.52-102,342.30-40,169.22

Finding the Fourth Proportional to 74,161.52, 102,342.30 and 40,169.22

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Solution

The fourth proportional to 74,161.52, 102,342.30 and 40,169.22 is: 55,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,161.52 : 102,342.30 = 40,169.22 : x
  2. Step 2: Convert to fraction form
    74,161.52/102,342.30 = 40,169.22/x
  3. Step 3: Cross multiply
    74,161.52x = 102,342.30 × 40,169.22
  4. Step 4: Simplify right side
    74,161.52x = 4,111,010,364.01
  5. Step 5: Solve for x
    x = 4,111,010,364.01/74,161.52
  6. Step 6: Final answer
    x = 55,433.20

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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.