Home / 55,432.89-83,157.48-20,369.79

Finding the Fourth Proportional to 55,432.89, 83,157.48 and 20,369.79

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Solution

The fourth proportional to 55,432.89, 83,157.48 and 20,369.79 is: 30,557.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,432.89 : 83,157.48 = 20,369.79 : x
  2. Step 2: Convert to fraction form
    55,432.89/83,157.48 = 20,369.79/x
  3. Step 3: Cross multiply
    55,432.89x = 83,157.48 × 20,369.79
  4. Step 4: Simplify right side
    55,432.89x = 1,693,900,404.53
  5. Step 5: Solve for x
    x = 1,693,900,404.53/55,432.89
  6. Step 6: Final answer
    x = 30,557.68

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1.5x scale

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.