Home / 45,205.18-67,720.28-34,765.90

Finding the Fourth Proportional to 45,205.18, 67,720.28 and 34,765.90

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Solution

The fourth proportional to 45,205.18, 67,720.28 and 34,765.90 is: 52,081.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,205.18 : 67,720.28 = 34,765.90 : x
  2. Step 2: Convert to fraction form
    45,205.18/67,720.28 = 34,765.90/x
  3. Step 3: Cross multiply
    45,205.18x = 67,720.28 × 34,765.90
  4. Step 4: Simplify right side
    45,205.18x = 2,354,356,139.32
  5. Step 5: Solve for x
    x = 2,354,356,139.32/45,205.18
  6. Step 6: Final answer
    x = 52,081.56

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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.