Home / 91,230.57-136,858.91-28,055.97

Finding the Fourth Proportional to 91,230.57, 136,858.91 and 28,055.97

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Solution

The fourth proportional to 91,230.57, 136,858.91 and 28,055.97 is: 42,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,230.57 : 136,858.91 = 28,055.97 : x
  2. Step 2: Convert to fraction form
    91,230.57/136,858.91 = 28,055.97/x
  3. Step 3: Cross multiply
    91,230.57x = 136,858.91 × 28,055.97
  4. Step 4: Simplify right side
    91,230.57x = 3,839,709,332.91
  5. Step 5: Solve for x
    x = 3,839,709,332.91/91,230.57
  6. Step 6: Final answer
    x = 42,087.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.