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Finding the Fourth Proportional to 55,480, 76,562.84 and 30,329.52

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Solution

The fourth proportional to 55,480, 76,562.84 and 30,329.52 is: 41,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,480 : 76,562.84 = 30,329.52 : x
  2. Step 2: Convert to fraction form
    55,480/76,562.84 = 30,329.52/x
  3. Step 3: Cross multiply
    55,480x = 76,562.84 × 30,329.52
  4. Step 4: Simplify right side
    55,480x = 2,322,114,187.04
  5. Step 5: Solve for x
    x = 2,322,114,187.04/55,480
  6. Step 6: Final answer
    x = 41,854.98

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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.