Home / 45,320.29-68,003.47-20,355.25

Finding the Fourth Proportional to 45,320.29, 68,003.47 and 20,355.25

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Solution

The fourth proportional to 45,320.29, 68,003.47 and 20,355.25 is: 30,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.29 : 68,003.47 = 20,355.25 : x
  2. Step 2: Convert to fraction form
    45,320.29/68,003.47 = 20,355.25/x
  3. Step 3: Cross multiply
    45,320.29x = 68,003.47 × 20,355.25
  4. Step 4: Simplify right side
    45,320.29x = 1,384,227,488.15
  5. Step 5: Solve for x
    x = 1,384,227,488.15/45,320.29
  6. Step 6: Final answer
    x = 30,543.22

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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.