Home / 48,186.48-72,240.76-20,128.03

Finding the Fourth Proportional to 48,186.48, 72,240.76 and 20,128.03

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Solution

The fourth proportional to 48,186.48, 72,240.76 and 20,128.03 is: 30,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,186.48 : 72,240.76 = 20,128.03 : x
  2. Step 2: Convert to fraction form
    48,186.48/72,240.76 = 20,128.03/x
  3. Step 3: Cross multiply
    48,186.48x = 72,240.76 × 20,128.03
  4. Step 4: Simplify right side
    48,186.48x = 1,454,064,184.50
  5. Step 5: Solve for x
    x = 1,454,064,184.50/48,186.48
  6. Step 6: Final answer
    x = 30,175.77

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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.