Home / 45,015.60-67,434.30-39,475.20

Finding the Fourth Proportional to 45,015.60, 67,434.30 and 39,475.20

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Solution

The fourth proportional to 45,015.60, 67,434.30 and 39,475.20 is: 59,134.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,015.60 : 67,434.30 = 39,475.20 : x
  2. Step 2: Convert to fraction form
    45,015.60/67,434.30 = 39,475.20/x
  3. Step 3: Cross multiply
    45,015.60x = 67,434.30 × 39,475.20
  4. Step 4: Simplify right side
    45,015.60x = 2,661,982,479.36
  5. Step 5: Solve for x
    x = 2,661,982,479.36/45,015.60
  6. Step 6: Final answer
    x = 59,134.67

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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.