Home / 79,643.36-119,538.94-40,228.16

Finding the Fourth Proportional to 79,643.36, 119,538.94 and 40,228.16

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Solution

The fourth proportional to 79,643.36, 119,538.94 and 40,228.16 is: 60,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,643.36 : 119,538.94 = 40,228.16 : x
  2. Step 2: Convert to fraction form
    79,643.36/119,538.94 = 40,228.16/x
  3. Step 3: Cross multiply
    79,643.36x = 119,538.94 × 40,228.16
  4. Step 4: Simplify right side
    79,643.36x = 4,808,831,604.55
  5. Step 5: Solve for x
    x = 4,808,831,604.55/79,643.36
  6. Step 6: Final answer
    x = 60,379.57

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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.