Home / 79,261.72-109,392.36-49,056.76

Finding the Fourth Proportional to 79,261.72, 109,392.36 and 49,056.76

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Solution

The fourth proportional to 79,261.72, 109,392.36 and 49,056.76 is: 67,705.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.72 : 109,392.36 = 49,056.76 : x
  2. Step 2: Convert to fraction form
    79,261.72/109,392.36 = 49,056.76/x
  3. Step 3: Cross multiply
    79,261.72x = 109,392.36 × 49,056.76
  4. Step 4: Simplify right side
    79,261.72x = 5,366,434,750.35
  5. Step 5: Solve for x
    x = 5,366,434,750.35/79,261.72
  6. Step 6: Final answer
    x = 67,705.25

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1.5x scale

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.