Home / 52,037.40-78,059.70-20,872.64

Finding the Fourth Proportional to 52,037.40, 78,059.70 and 20,872.64

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Solution

The fourth proportional to 52,037.40, 78,059.70 and 20,872.64 is: 31,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,037.40 : 78,059.70 = 20,872.64 : x
  2. Step 2: Convert to fraction form
    52,037.40/78,059.70 = 20,872.64/x
  3. Step 3: Cross multiply
    52,037.40x = 78,059.70 × 20,872.64
  4. Step 4: Simplify right side
    52,037.40x = 1,629,312,016.61
  5. Step 5: Solve for x
    x = 1,629,312,016.61/52,037.40
  6. Step 6: Final answer
    x = 31,310.40

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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.