Home / 48,729.24-67,179.42-30,815.28

Finding the Fourth Proportional to 48,729.24, 67,179.42 and 30,815.28

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Solution

The fourth proportional to 48,729.24, 67,179.42 and 30,815.28 is: 42,482.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,729.24 : 67,179.42 = 30,815.28 : x
  2. Step 2: Convert to fraction form
    48,729.24/67,179.42 = 30,815.28/x
  3. Step 3: Cross multiply
    48,729.24x = 67,179.42 × 30,815.28
  4. Step 4: Simplify right side
    48,729.24x = 2,070,152,637.54
  5. Step 5: Solve for x
    x = 2,070,152,637.54/48,729.24
  6. Step 6: Final answer
    x = 42,482.76

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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.