Home / 57,516.36-86,295.30-20,081.95

Finding the Fourth Proportional to 57,516.36, 86,295.30 and 20,081.95

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Solution

The fourth proportional to 57,516.36, 86,295.30 and 20,081.95 is: 30,130.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,516.36 : 86,295.30 = 20,081.95 : x
  2. Step 2: Convert to fraction form
    57,516.36/86,295.30 = 20,081.95/x
  3. Step 3: Cross multiply
    57,516.36x = 86,295.30 × 20,081.95
  4. Step 4: Simplify right side
    57,516.36x = 1,732,977,520.63
  5. Step 5: Solve for x
    x = 1,732,977,520.63/57,516.36
  6. Step 6: Final answer
    x = 30,130.17

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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.