Home / 101,851.41-140,561.51-56,529.39

Finding the Fourth Proportional to 101,851.41, 140,561.51 and 56,529.39

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Solution

The fourth proportional to 101,851.41, 140,561.51 and 56,529.39 is: 78,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,851.41 : 140,561.51 = 56,529.39 : x
  2. Step 2: Convert to fraction form
    101,851.41/140,561.51 = 56,529.39/x
  3. Step 3: Cross multiply
    101,851.41x = 140,561.51 × 56,529.39
  4. Step 4: Simplify right side
    101,851.41x = 7,945,856,425.90
  5. Step 5: Solve for x
    x = 7,945,856,425.90/101,851.41
  6. Step 6: Final answer
    x = 78,014.21

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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.