Home / 55,014.79-75,922.22-31,140.96

Finding the Fourth Proportional to 55,014.79, 75,922.22 and 31,140.96

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Solution

The fourth proportional to 55,014.79, 75,922.22 and 31,140.96 is: 42,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,014.79 : 75,922.22 = 31,140.96 : x
  2. Step 2: Convert to fraction form
    55,014.79/75,922.22 = 31,140.96/x
  3. Step 3: Cross multiply
    55,014.79x = 75,922.22 × 31,140.96
  4. Step 4: Simplify right side
    55,014.79x = 2,364,290,816.13
  5. Step 5: Solve for x
    x = 2,364,290,816.13/55,014.79
  6. Step 6: Final answer
    x = 42,975.55

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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.