Home / 74,195.18-102,388.83-40,660.46

Finding the Fourth Proportional to 74,195.18, 102,388.83 and 40,660.46

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Solution

The fourth proportional to 74,195.18, 102,388.83 and 40,660.46 is: 56,111.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195.18 : 102,388.83 = 40,660.46 : x
  2. Step 2: Convert to fraction form
    74,195.18/102,388.83 = 40,660.46/x
  3. Step 3: Cross multiply
    74,195.18x = 102,388.83 × 40,660.46
  4. Step 4: Simplify right side
    74,195.18x = 4,163,176,926.66
  5. Step 5: Solve for x
    x = 4,163,176,926.66/74,195.18
  6. Step 6: Final answer
    x = 56,111.15

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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.