Home / 74,392.29-102,660.93-40,400.46

Finding the Fourth Proportional to 74,392.29, 102,660.93 and 40,400.46

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Solution

The fourth proportional to 74,392.29, 102,660.93 and 40,400.46 is: 55,752.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,392.29 : 102,660.93 = 40,400.46 : x
  2. Step 2: Convert to fraction form
    74,392.29/102,660.93 = 40,400.46/x
  3. Step 3: Cross multiply
    74,392.29x = 102,660.93 × 40,400.46
  4. Step 4: Simplify right side
    74,392.29x = 4,147,548,796.03
  5. Step 5: Solve for x
    x = 4,147,548,796.03/74,392.29
  6. Step 6: Final answer
    x = 55,752.40

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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.