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Finding the Fourth Proportional to 55,141, 76,094.94 and 29,990.68

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Solution

The fourth proportional to 55,141, 76,094.94 and 29,990.68 is: 41,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141 : 76,094.94 = 29,990.68 : x
  2. Step 2: Convert to fraction form
    55,141/76,094.94 = 29,990.68/x
  3. Step 3: Cross multiply
    55,141x = 76,094.94 × 29,990.68
  4. Step 4: Simplify right side
    55,141x = 2,282,138,995.16
  5. Step 5: Solve for x
    x = 2,282,138,995.16/55,141
  6. Step 6: Final answer
    x = 41,387.33

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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.