Home / 74,173.78-102,359.40-40,182.92

Finding the Fourth Proportional to 74,173.78, 102,359.40 and 40,182.92

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Solution

The fourth proportional to 74,173.78, 102,359.40 and 40,182.92 is: 55,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,173.78 : 102,359.40 = 40,182.92 : x
  2. Step 2: Convert to fraction form
    74,173.78/102,359.40 = 40,182.92/x
  3. Step 3: Cross multiply
    74,173.78x = 102,359.40 × 40,182.92
  4. Step 4: Simplify right side
    74,173.78x = 4,113,099,581.45
  5. Step 5: Solve for x
    x = 4,113,099,581.45/74,173.78
  6. Step 6: Final answer
    x = 55,452.20

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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.