Home / 83,714.48-115,542.96-51,434.36

Finding the Fourth Proportional to 83,714.48, 115,542.96 and 51,434.36

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Solution

The fourth proportional to 83,714.48, 115,542.96 and 51,434.36 is: 70,989.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,714.48 : 115,542.96 = 51,434.36 : x
  2. Step 2: Convert to fraction form
    83,714.48/115,542.96 = 51,434.36/x
  3. Step 3: Cross multiply
    83,714.48x = 115,542.96 × 51,434.36
  4. Step 4: Simplify right side
    83,714.48x = 5,942,878,200.11
  5. Step 5: Solve for x
    x = 5,942,878,200.11/83,714.48
  6. Step 6: Final answer
    x = 70,989.85

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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.