Home / 55,055.50-75,977.26-31,181.60

Finding the Fourth Proportional to 55,055.50, 75,977.26 and 31,181.60

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Solution

The fourth proportional to 55,055.50, 75,977.26 and 31,181.60 is: 43,030.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,055.50 : 75,977.26 = 31,181.60 : x
  2. Step 2: Convert to fraction form
    55,055.50/75,977.26 = 31,181.60/x
  3. Step 3: Cross multiply
    55,055.50x = 75,977.26 × 31,181.60
  4. Step 4: Simplify right side
    55,055.50x = 2,369,092,530.42
  5. Step 5: Solve for x
    x = 2,369,092,530.42/55,055.50
  6. Step 6: Final answer
    x = 43,030.99

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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.