Home / 42,120.57-63,127.80-36,843.02

Finding the Fourth Proportional to 42,120.57, 63,127.80 and 36,843.02

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Solution

The fourth proportional to 42,120.57, 63,127.80 and 36,843.02 is: 55,218.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120.57 : 63,127.80 = 36,843.02 : x
  2. Step 2: Convert to fraction form
    42,120.57/63,127.80 = 36,843.02/x
  3. Step 3: Cross multiply
    42,120.57x = 63,127.80 × 36,843.02
  4. Step 4: Simplify right side
    42,120.57x = 2,325,818,797.96
  5. Step 5: Solve for x
    x = 2,325,818,797.96/42,120.57
  6. Step 6: Final answer
    x = 55,218.12

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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.