Home / 83,477.48-115,198.18-45,751.72

Finding the Fourth Proportional to 83,477.48, 115,198.18 and 45,751.72

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Solution

The fourth proportional to 83,477.48, 115,198.18 and 45,751.72 is: 63,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,477.48 : 115,198.18 = 45,751.72 : x
  2. Step 2: Convert to fraction form
    83,477.48/115,198.18 = 45,751.72/x
  3. Step 3: Cross multiply
    83,477.48x = 115,198.18 × 45,751.72
  4. Step 4: Simplify right side
    83,477.48x = 5,270,514,875.87
  5. Step 5: Solve for x
    x = 5,270,514,875.87/83,477.48
  6. Step 6: Final answer
    x = 63,136.97

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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.