Home / 89,138.25-123,010.79-53,329.77

Finding the Fourth Proportional to 89,138.25, 123,010.79 and 53,329.77

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Solution

The fourth proportional to 89,138.25, 123,010.79 and 53,329.77 is: 73,595.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,138.25 : 123,010.79 = 53,329.77 : x
  2. Step 2: Convert to fraction form
    89,138.25/123,010.79 = 53,329.77/x
  3. Step 3: Cross multiply
    89,138.25x = 123,010.79 × 53,329.77
  4. Step 4: Simplify right side
    89,138.25x = 6,560,136,871.57
  5. Step 5: Solve for x
    x = 6,560,136,871.57/89,138.25
  6. Step 6: Final answer
    x = 73,595.08

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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.