Home / 79,270.47-109,396.64-47,433.22

Finding the Fourth Proportional to 79,270.47, 109,396.64 and 47,433.22

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Solution

The fourth proportional to 79,270.47, 109,396.64 and 47,433.22 is: 65,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,270.47 : 109,396.64 = 47,433.22 : x
  2. Step 2: Convert to fraction form
    79,270.47/109,396.64 = 47,433.22/x
  3. Step 3: Cross multiply
    79,270.47x = 109,396.64 × 47,433.22
  4. Step 4: Simplify right side
    79,270.47x = 5,189,034,737.47
  5. Step 5: Solve for x
    x = 5,189,034,737.47/79,270.47
  6. Step 6: Final answer
    x = 65,459.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.