Home / 48,103.12-72,162.36-20,401.36

Finding the Fourth Proportional to 48,103.12, 72,162.36 and 20,401.36

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Solution

The fourth proportional to 48,103.12, 72,162.36 and 20,401.36 is: 30,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,103.12 : 72,162.36 = 20,401.36 : x
  2. Step 2: Convert to fraction form
    48,103.12/72,162.36 = 20,401.36/x
  3. Step 3: Cross multiply
    48,103.12x = 72,162.36 × 20,401.36
  4. Step 4: Simplify right side
    48,103.12x = 1,472,210,284.81
  5. Step 5: Solve for x
    x = 1,472,210,284.81/48,103.12
  6. Step 6: Final answer
    x = 30,605.30

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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.