Home / 45,432.20-68,221.20-30,706.40

Finding the Fourth Proportional to 45,432.20, 68,221.20 and 30,706.40

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Solution

The fourth proportional to 45,432.20, 68,221.20 and 30,706.40 is: 46,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,432.20 : 68,221.20 = 30,706.40 : x
  2. Step 2: Convert to fraction form
    45,432.20/68,221.20 = 30,706.40/x
  3. Step 3: Cross multiply
    45,432.20x = 68,221.20 × 30,706.40
  4. Step 4: Simplify right side
    45,432.20x = 2,094,827,455.68
  5. Step 5: Solve for x
    x = 2,094,827,455.68/45,432.20
  6. Step 6: Final answer
    x = 46,108.87

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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.