Home / 48,186.23-72,240.39-20,127.78

Finding the Fourth Proportional to 48,186.23, 72,240.39 and 20,127.78

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Solution

The fourth proportional to 48,186.23, 72,240.39 and 20,127.78 is: 30,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,186.23 : 72,240.39 = 20,127.78 : x
  2. Step 2: Convert to fraction form
    48,186.23/72,240.39 = 20,127.78/x
  3. Step 3: Cross multiply
    48,186.23x = 72,240.39 × 20,127.78
  4. Step 4: Simplify right side
    48,186.23x = 1,454,038,677.03
  5. Step 5: Solve for x
    x = 1,454,038,677.03/48,186.23
  6. Step 6: Final answer
    x = 30,175.40

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1.5x scale

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.