Home / 74,182.75-102,372.22-40,191.47

Finding the Fourth Proportional to 74,182.75, 102,372.22 and 40,191.47

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Solution

The fourth proportional to 74,182.75, 102,372.22 and 40,191.47 is: 55,464.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,182.75 : 102,372.22 = 40,191.47 : x
  2. Step 2: Convert to fraction form
    74,182.75/102,372.22 = 40,191.47/x
  3. Step 3: Cross multiply
    74,182.75x = 102,372.22 × 40,191.47
  4. Step 4: Simplify right side
    74,182.75x = 4,114,490,008.96
  5. Step 5: Solve for x
    x = 4,114,490,008.96/74,182.75
  6. Step 6: Final answer
    x = 55,464.24

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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.