Home / 101,880.45-140,588.32-56,556.22

Finding the Fourth Proportional to 101,880.45, 140,588.32 and 56,556.22

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Solution

The fourth proportional to 101,880.45, 140,588.32 and 56,556.22 is: 78,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,880.45 : 140,588.32 = 56,556.22 : x
  2. Step 2: Convert to fraction form
    101,880.45/140,588.32 = 56,556.22/x
  3. Step 3: Cross multiply
    101,880.45x = 140,588.32 × 56,556.22
  4. Step 4: Simplify right side
    101,880.45x = 7,951,143,955.35
  5. Step 5: Solve for x
    x = 7,951,143,955.35/101,880.45
  6. Step 6: Final answer
    x = 78,043.86

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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.