Home / 55,410.89-83,124.53-20,347.81

Finding the Fourth Proportional to 55,410.89, 83,124.53 and 20,347.81

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Solution

The fourth proportional to 55,410.89, 83,124.53 and 20,347.81 is: 30,524.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,410.89 : 83,124.53 = 20,347.81 : x
  2. Step 2: Convert to fraction form
    55,410.89/83,124.53 = 20,347.81/x
  3. Step 3: Cross multiply
    55,410.89x = 83,124.53 × 20,347.81
  4. Step 4: Simplify right side
    55,410.89x = 1,691,401,909.53
  5. Step 5: Solve for x
    x = 1,691,401,909.53/55,410.89
  6. Step 6: Final answer
    x = 30,524.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.