Home / 89,700.70-123,777.66-55,239.95

Finding the Fourth Proportional to 89,700.70, 123,777.66 and 55,239.95

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Solution

The fourth proportional to 89,700.70, 123,777.66 and 55,239.95 is: 76,225.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,700.70 : 123,777.66 = 55,239.95 : x
  2. Step 2: Convert to fraction form
    89,700.70/123,777.66 = 55,239.95/x
  3. Step 3: Cross multiply
    89,700.70x = 123,777.66 × 55,239.95
  4. Step 4: Simplify right side
    89,700.70x = 6,837,471,749.52
  5. Step 5: Solve for x
    x = 6,837,471,749.52/89,700.70
  6. Step 6: Final answer
    x = 76,225.40

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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.