Home / 79,384.53-109,546.65-47,120.55

Finding the Fourth Proportional to 79,384.53, 109,546.65 and 47,120.55

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Solution

The fourth proportional to 79,384.53, 109,546.65 and 47,120.55 is: 65,023.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,384.53 : 109,546.65 = 47,120.55 : x
  2. Step 2: Convert to fraction form
    79,384.53/109,546.65 = 47,120.55/x
  3. Step 3: Cross multiply
    79,384.53x = 109,546.65 × 47,120.55
  4. Step 4: Simplify right side
    79,384.53x = 5,161,898,398.66
  5. Step 5: Solve for x
    x = 5,161,898,398.66/79,384.53
  6. Step 6: Final answer
    x = 65,023.98

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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.