Home / 52,096.40-78,130.20-20,934.80

Finding the Fourth Proportional to 52,096.40, 78,130.20 and 20,934.80

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Solution

The fourth proportional to 52,096.40, 78,130.20 and 20,934.80 is: 31,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,096.40 : 78,130.20 = 20,934.80 : x
  2. Step 2: Convert to fraction form
    52,096.40/78,130.20 = 20,934.80/x
  3. Step 3: Cross multiply
    52,096.40x = 78,130.20 × 20,934.80
  4. Step 4: Simplify right side
    52,096.40x = 1,635,640,110.96
  5. Step 5: Solve for x
    x = 1,635,640,110.96/52,096.40
  6. Step 6: Final answer
    x = 31,396.41

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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.