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Finding the Fourth Proportional to 72,483.66, 100,033.56 and 40,658.58

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Solution

The fourth proportional to 72,483.66, 100,033.56 and 40,658.58 is: 56,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,483.66 : 100,033.56 = 40,658.58 : x
  2. Step 2: Convert to fraction form
    72,483.66/100,033.56 = 40,658.58/x
  3. Step 3: Cross multiply
    72,483.66x = 100,033.56 × 40,658.58
  4. Step 4: Simplify right side
    72,483.66x = 4,067,222,501.94
  5. Step 5: Solve for x
    x = 4,067,222,501.94/72,483.66
  6. Step 6: Final answer
    x = 56,112.27

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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.