Home / 101,881.06-140,612.68-56,573.58

Finding the Fourth Proportional to 101,881.06, 140,612.68 and 56,573.58

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Solution

The fourth proportional to 101,881.06, 140,612.68 and 56,573.58 is: 78,080.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,881.06 : 140,612.68 = 56,573.58 : x
  2. Step 2: Convert to fraction form
    101,881.06/140,612.68 = 56,573.58/x
  3. Step 3: Cross multiply
    101,881.06x = 140,612.68 × 56,573.58
  4. Step 4: Simplify right side
    101,881.06x = 7,954,962,700.99
  5. Step 5: Solve for x
    x = 7,954,962,700.99/101,881.06
  6. Step 6: Final answer
    x = 78,080.88

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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.