Home / 83,819.36-115,669.38-45,579.68

Finding the Fourth Proportional to 83,819.36, 115,669.38 and 45,579.68

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Solution

The fourth proportional to 83,819.36, 115,669.38 and 45,579.68 is: 62,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,819.36 : 115,669.38 = 45,579.68 : x
  2. Step 2: Convert to fraction form
    83,819.36/115,669.38 = 45,579.68/x
  3. Step 3: Cross multiply
    83,819.36x = 115,669.38 × 45,579.68
  4. Step 4: Simplify right side
    83,819.36x = 5,272,173,326.20
  5. Step 5: Solve for x
    x = 5,272,173,326.20/83,819.36
  6. Step 6: Final answer
    x = 62,899.23

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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.