Home / 79,261.76-109,392.40-49,056.72

Finding the Fourth Proportional to 79,261.76, 109,392.40 and 49,056.72

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Solution

The fourth proportional to 79,261.76, 109,392.40 and 49,056.72 is: 67,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.76 : 109,392.40 = 49,056.72 : x
  2. Step 2: Convert to fraction form
    79,261.76/109,392.40 = 49,056.72/x
  3. Step 3: Cross multiply
    79,261.76x = 109,392.40 × 49,056.72
  4. Step 4: Simplify right side
    79,261.76x = 5,366,432,336.93
  5. Step 5: Solve for x
    x = 5,366,432,336.93/79,261.76
  6. Step 6: Final answer
    x = 67,705.19

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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.