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Finding the Fourth Proportional to 55,090.58, 75,999.03 and 39,950.02

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Solution

The fourth proportional to 55,090.58, 75,999.03 and 39,950.02 is: 55,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,090.58 : 75,999.03 = 39,950.02 : x
  2. Step 2: Convert to fraction form
    55,090.58/75,999.03 = 39,950.02/x
  3. Step 3: Cross multiply
    55,090.58x = 75,999.03 × 39,950.02
  4. Step 4: Simplify right side
    55,090.58x = 3,036,162,713.67
  5. Step 5: Solve for x
    x = 3,036,162,713.67/55,090.58
  6. Step 6: Final answer
    x = 55,112.20

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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.