Home / 74,949.99-103,432.34-40,959.90

Finding the Fourth Proportional to 74,949.99, 103,432.34 and 40,959.90

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Solution

The fourth proportional to 74,949.99, 103,432.34 and 40,959.90 is: 56,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,949.99 : 103,432.34 = 40,959.90 : x
  2. Step 2: Convert to fraction form
    74,949.99/103,432.34 = 40,959.90/x
  3. Step 3: Cross multiply
    74,949.99x = 103,432.34 × 40,959.90
  4. Step 4: Simplify right side
    74,949.99x = 4,236,578,098.37
  5. Step 5: Solve for x
    x = 4,236,578,098.37/74,949.99
  6. Step 6: Final answer
    x = 56,525.40

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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.