Home / 83,629.04-115,407.10-45,388.66

Finding the Fourth Proportional to 83,629.04, 115,407.10 and 45,388.66

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Solution

The fourth proportional to 83,629.04, 115,407.10 and 45,388.66 is: 62,635.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,629.04 : 115,407.10 = 45,388.66 : x
  2. Step 2: Convert to fraction form
    83,629.04/115,407.10 = 45,388.66/x
  3. Step 3: Cross multiply
    83,629.04x = 115,407.10 × 45,388.66
  4. Step 4: Simplify right side
    83,629.04x = 5,238,172,819.51
  5. Step 5: Solve for x
    x = 5,238,172,819.51/83,629.04
  6. Step 6: Final answer
    x = 62,635.81

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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.