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Finding the Fourth Proportional to 55,473.86, 76,553.95 and 29,980.15

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Solution

The fourth proportional to 55,473.86, 76,553.95 and 29,980.15 is: 41,372.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,473.86 : 76,553.95 = 29,980.15 : x
  2. Step 2: Convert to fraction form
    55,473.86/76,553.95 = 29,980.15/x
  3. Step 3: Cross multiply
    55,473.86x = 76,553.95 × 29,980.15
  4. Step 4: Simplify right side
    55,473.86x = 2,295,098,904.09
  5. Step 5: Solve for x
    x = 2,295,098,904.09/55,473.86
  6. Step 6: Final answer
    x = 41,372.62

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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.