Home / 74,686.34-103,065.94-40,695.28

Finding the Fourth Proportional to 74,686.34, 103,065.94 and 40,695.28

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Solution

The fourth proportional to 74,686.34, 103,065.94 and 40,695.28 is: 56,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.34 : 103,065.94 = 40,695.28 : x
  2. Step 2: Convert to fraction form
    74,686.34/103,065.94 = 40,695.28/x
  3. Step 3: Cross multiply
    74,686.34x = 103,065.94 × 40,695.28
  4. Step 4: Simplify right side
    74,686.34x = 4,194,297,286.76
  5. Step 5: Solve for x
    x = 4,194,297,286.76/74,686.34
  6. Step 6: Final answer
    x = 56,158.83

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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.