Home / 45,818.68-68,685.73-31,785.34

Finding the Fourth Proportional to 45,818.68, 68,685.73 and 31,785.34

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Solution

The fourth proportional to 45,818.68, 68,685.73 and 31,785.34 is: 47,648.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.68 : 68,685.73 = 31,785.34 : x
  2. Step 2: Convert to fraction form
    45,818.68/68,685.73 = 31,785.34/x
  3. Step 3: Cross multiply
    45,818.68x = 68,685.73 × 31,785.34
  4. Step 4: Simplify right side
    45,818.68x = 2,183,199,281.20
  5. Step 5: Solve for x
    x = 2,183,199,281.20/45,818.68
  6. Step 6: Final answer
    x = 47,648.67

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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.