Home / 42,121.57-63,129.30-36,844.02

Finding the Fourth Proportional to 42,121.57, 63,129.30 and 36,844.02

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Solution

The fourth proportional to 42,121.57, 63,129.30 and 36,844.02 is: 55,219.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,121.57 : 63,129.30 = 36,844.02 : x
  2. Step 2: Convert to fraction form
    42,121.57/63,129.30 = 36,844.02/x
  3. Step 3: Cross multiply
    42,121.57x = 63,129.30 × 36,844.02
  4. Step 4: Simplify right side
    42,121.57x = 2,325,937,191.79
  5. Step 5: Solve for x
    x = 2,325,937,191.79/42,121.57
  6. Step 6: Final answer
    x = 55,219.62

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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.