Home / 74,152.75-102,330.77-40,161.24

Finding the Fourth Proportional to 74,152.75, 102,330.77 and 40,161.24

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Solution

The fourth proportional to 74,152.75, 102,330.77 and 40,161.24 is: 55,422.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152.75 : 102,330.77 = 40,161.24 : x
  2. Step 2: Convert to fraction form
    74,152.75/102,330.77 = 40,161.24/x
  3. Step 3: Cross multiply
    74,152.75x = 102,330.77 × 40,161.24
  4. Step 4: Simplify right side
    74,152.75x = 4,109,730,613.35
  5. Step 5: Solve for x
    x = 4,109,730,613.35/74,152.75
  6. Step 6: Final answer
    x = 55,422.50

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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.