Home / 72,937.95-109,409.36-20,343.03

Finding the Fourth Proportional to 72,937.95, 109,409.36 and 20,343.03

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Solution

The fourth proportional to 72,937.95, 109,409.36 and 20,343.03 is: 30,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,937.95 : 109,409.36 = 20,343.03 : x
  2. Step 2: Convert to fraction form
    72,937.95/109,409.36 = 20,343.03/x
  3. Step 3: Cross multiply
    72,937.95x = 109,409.36 × 20,343.03
  4. Step 4: Simplify right side
    72,937.95x = 2,225,717,791.05
  5. Step 5: Solve for x
    x = 2,225,717,791.05/72,937.95
  6. Step 6: Final answer
    x = 30,515.22

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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.