Home / 55,961.28-83,915.39-20,397.42

Finding the Fourth Proportional to 55,961.28, 83,915.39 and 20,397.42

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Solution

The fourth proportional to 55,961.28, 83,915.39 and 20,397.42 is: 30,586.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,961.28 : 83,915.39 = 20,397.42 : x
  2. Step 2: Convert to fraction form
    55,961.28/83,915.39 = 20,397.42/x
  3. Step 3: Cross multiply
    55,961.28x = 83,915.39 × 20,397.42
  4. Step 4: Simplify right side
    55,961.28x = 1,711,657,505.29
  5. Step 5: Solve for x
    x = 1,711,657,505.29/55,961.28
  6. Step 6: Final answer
    x = 30,586.46

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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.