Home / 81,513.13-122,280.63-34,776.94

Finding the Fourth Proportional to 81,513.13, 122,280.63 and 34,776.94

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Solution

The fourth proportional to 81,513.13, 122,280.63 and 34,776.94 is: 52,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,513.13 : 122,280.63 = 34,776.94 : x
  2. Step 2: Convert to fraction form
    81,513.13/122,280.63 = 34,776.94/x
  3. Step 3: Cross multiply
    81,513.13x = 122,280.63 × 34,776.94
  4. Step 4: Simplify right side
    81,513.13x = 4,252,545,347.38
  5. Step 5: Solve for x
    x = 4,252,545,347.38/81,513.13
  6. Step 6: Final answer
    x = 52,170.07

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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.