Home / 77,939.10-107,530.17-43,943.34

Finding the Fourth Proportional to 77,939.10, 107,530.17 and 43,943.34

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Solution

The fourth proportional to 77,939.10, 107,530.17 and 43,943.34 is: 60,627.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,939.10 : 107,530.17 = 43,943.34 : x
  2. Step 2: Convert to fraction form
    77,939.10/107,530.17 = 43,943.34/x
  3. Step 3: Cross multiply
    77,939.10x = 107,530.17 × 43,943.34
  4. Step 4: Simplify right side
    77,939.10x = 4,725,234,820.57
  5. Step 5: Solve for x
    x = 4,725,234,820.57/77,939.10
  6. Step 6: Final answer
    x = 60,627.27

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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.