Home / 74,181.78-102,381.30-42,352.56

Finding the Fourth Proportional to 74,181.78, 102,381.30 and 42,352.56

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Solution

The fourth proportional to 74,181.78, 102,381.30 and 42,352.56 is: 58,452.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,181.78 : 102,381.30 = 42,352.56 : x
  2. Step 2: Convert to fraction form
    74,181.78/102,381.30 = 42,352.56/x
  3. Step 3: Cross multiply
    74,181.78x = 102,381.30 × 42,352.56
  4. Step 4: Simplify right side
    74,181.78x = 4,336,110,151.13
  5. Step 5: Solve for x
    x = 4,336,110,151.13/74,181.78
  6. Step 6: Final answer
    x = 58,452.50

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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.