Home / 89,605.36-134,428.08-27,280.72

Finding the Fourth Proportional to 89,605.36, 134,428.08 and 27,280.72

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Solution

The fourth proportional to 89,605.36, 134,428.08 and 27,280.72 is: 40,927.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,605.36 : 134,428.08 = 27,280.72 : x
  2. Step 2: Convert to fraction form
    89,605.36/134,428.08 = 27,280.72/x
  3. Step 3: Cross multiply
    89,605.36x = 134,428.08 × 27,280.72
  4. Step 4: Simplify right side
    89,605.36x = 3,667,294,810.62
  5. Step 5: Solve for x
    x = 3,667,294,810.62/89,605.36
  6. Step 6: Final answer
    x = 40,927.18

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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.