Home / 56,645.28-85,351.60-47,000.60

Finding the Fourth Proportional to 56,645.28, 85,351.60 and 47,000.60

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Solution

The fourth proportional to 56,645.28, 85,351.60 and 47,000.60 is: 70,819.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,645.28 : 85,351.60 = 47,000.60 : x
  2. Step 2: Convert to fraction form
    56,645.28/85,351.60 = 47,000.60/x
  3. Step 3: Cross multiply
    56,645.28x = 85,351.60 × 47,000.60
  4. Step 4: Simplify right side
    56,645.28x = 4,011,576,410.96
  5. Step 5: Solve for x
    x = 4,011,576,410.96/56,645.28
  6. Step 6: Final answer
    x = 70,819.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.