Home / 82,143.42-113,358.79-48,172.02

Finding the Fourth Proportional to 82,143.42, 113,358.79 and 48,172.02

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Solution

The fourth proportional to 82,143.42, 113,358.79 and 48,172.02 is: 66,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,143.42 : 113,358.79 = 48,172.02 : x
  2. Step 2: Convert to fraction form
    82,143.42/113,358.79 = 48,172.02/x
  3. Step 3: Cross multiply
    82,143.42x = 113,358.79 × 48,172.02
  4. Step 4: Simplify right side
    82,143.42x = 5,460,721,534.18
  5. Step 5: Solve for x
    x = 5,460,721,534.18/82,143.42
  6. Step 6: Final answer
    x = 66,477.90

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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.