Home / 45,820.40-68,730.60-30,125.30

Finding the Fourth Proportional to 45,820.40, 68,730.60 and 30,125.30

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Solution

The fourth proportional to 45,820.40, 68,730.60 and 30,125.30 is: 45,187.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,820.40 : 68,730.60 = 30,125.30 : x
  2. Step 2: Convert to fraction form
    45,820.40/68,730.60 = 30,125.30/x
  3. Step 3: Cross multiply
    45,820.40x = 68,730.60 × 30,125.30
  4. Step 4: Simplify right side
    45,820.40x = 2,070,529,944.18
  5. Step 5: Solve for x
    x = 2,070,529,944.18/45,820.40
  6. Step 6: Final answer
    x = 45,187.95

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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.