Home / 89,699.70-123,776.28-55,238.95

Finding the Fourth Proportional to 89,699.70, 123,776.28 and 55,238.95

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Solution

The fourth proportional to 89,699.70, 123,776.28 and 55,238.95 is: 76,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,699.70 : 123,776.28 = 55,238.95 : x
  2. Step 2: Convert to fraction form
    89,699.70/123,776.28 = 55,238.95/x
  3. Step 3: Cross multiply
    89,699.70x = 123,776.28 × 55,238.95
  4. Step 4: Simplify right side
    89,699.70x = 6,837,271,742.11
  5. Step 5: Solve for x
    x = 6,837,271,742.11/89,699.70
  6. Step 6: Final answer
    x = 76,224.02

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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.