Home / 83,790.48-115,659.36-53,587.92

Finding the Fourth Proportional to 83,790.48, 115,659.36 and 53,587.92

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Solution

The fourth proportional to 83,790.48, 115,659.36 and 53,587.92 is: 73,969.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,790.48 : 115,659.36 = 53,587.92 : x
  2. Step 2: Convert to fraction form
    83,790.48/115,659.36 = 53,587.92/x
  3. Step 3: Cross multiply
    83,790.48x = 115,659.36 × 53,587.92
  4. Step 4: Simplify right side
    83,790.48x = 6,197,944,530.93
  5. Step 5: Solve for x
    x = 6,197,944,530.93/83,790.48
  6. Step 6: Final answer
    x = 73,969.56

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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.