Home / 55,326.87-76,357.53-31,457.12

Finding the Fourth Proportional to 55,326.87, 76,357.53 and 31,457.12

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Solution

The fourth proportional to 55,326.87, 76,357.53 and 31,457.12 is: 43,414.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,326.87 : 76,357.53 = 31,457.12 : x
  2. Step 2: Convert to fraction form
    55,326.87/76,357.53 = 31,457.12/x
  3. Step 3: Cross multiply
    55,326.87x = 76,357.53 × 31,457.12
  4. Step 4: Simplify right side
    55,326.87x = 2,401,987,602.33
  5. Step 5: Solve for x
    x = 2,401,987,602.33/55,326.87
  6. Step 6: Final answer
    x = 43,414.49

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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.