Home / 52,037.78-78,056.51-20,425.72

Finding the Fourth Proportional to 52,037.78, 78,056.51 and 20,425.72

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Solution

The fourth proportional to 52,037.78, 78,056.51 and 20,425.72 is: 30,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,037.78 : 78,056.51 = 20,425.72 : x
  2. Step 2: Convert to fraction form
    52,037.78/78,056.51 = 20,425.72/x
  3. Step 3: Cross multiply
    52,037.78x = 78,056.51 × 20,425.72
  4. Step 4: Simplify right side
    52,037.78x = 1,594,360,027.15
  5. Step 5: Solve for x
    x = 1,594,360,027.15/52,037.78
  6. Step 6: Final answer
    x = 30,638.51

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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.