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Finding the Fourth Proportional to 86,703.01, 119,658.36 and 54,442.94

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Solution

The fourth proportional to 86,703.01, 119,658.36 and 54,442.94 is: 75,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.01 : 119,658.36 = 54,442.94 : x
  2. Step 2: Convert to fraction form
    86,703.01/119,658.36 = 54,442.94/x
  3. Step 3: Cross multiply
    86,703.01x = 119,658.36 × 54,442.94
  4. Step 4: Simplify right side
    86,703.01x = 6,514,552,519.85
  5. Step 5: Solve for x
    x = 6,514,552,519.85/86,703.01
  6. Step 6: Final answer
    x = 75,136.41

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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.