Home / 89,423.80-123,369.48-57,611.25

Finding the Fourth Proportional to 89,423.80, 123,369.48 and 57,611.25

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Solution

The fourth proportional to 89,423.80, 123,369.48 and 57,611.25 is: 79,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,423.80 : 123,369.48 = 57,611.25 : x
  2. Step 2: Convert to fraction form
    89,423.80/123,369.48 = 57,611.25/x
  3. Step 3: Cross multiply
    89,423.80x = 123,369.48 × 57,611.25
  4. Step 4: Simplify right side
    89,423.80x = 7,107,469,954.65
  5. Step 5: Solve for x
    x = 7,107,469,954.65/89,423.80
  6. Step 6: Final answer
    x = 79,480.74

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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.