Home / 55,113.20-82,702.20-20,056.40

Finding the Fourth Proportional to 55,113.20, 82,702.20 and 20,056.40

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Solution

The fourth proportional to 55,113.20, 82,702.20 and 20,056.40 is: 30,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.20 : 82,702.20 = 20,056.40 : x
  2. Step 2: Convert to fraction form
    55,113.20/82,702.20 = 20,056.40/x
  3. Step 3: Cross multiply
    55,113.20x = 82,702.20 × 20,056.40
  4. Step 4: Simplify right side
    55,113.20x = 1,658,708,404.08
  5. Step 5: Solve for x
    x = 1,658,708,404.08/55,113.20
  6. Step 6: Final answer
    x = 30,096.39

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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.