Home / 89,339.49-123,249.20-55,338.93

Finding the Fourth Proportional to 89,339.49, 123,249.20 and 55,338.93

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Solution

The fourth proportional to 89,339.49, 123,249.20 and 55,338.93 is: 76,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339.49 : 123,249.20 = 55,338.93 : x
  2. Step 2: Convert to fraction form
    89,339.49/123,249.20 = 55,338.93/x
  3. Step 3: Cross multiply
    89,339.49x = 123,249.20 × 55,338.93
  4. Step 4: Simplify right side
    89,339.49x = 6,820,478,574.66
  5. Step 5: Solve for x
    x = 6,820,478,574.66/89,339.49
  6. Step 6: Final answer
    x = 76,343.38

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1.5x scale

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.