Home / 91,728.77-137,578.39-25,153.45

Finding the Fourth Proportional to 91,728.77, 137,578.39 and 25,153.45

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Solution

The fourth proportional to 91,728.77, 137,578.39 and 25,153.45 is: 37,726.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,728.77 : 137,578.39 = 25,153.45 : x
  2. Step 2: Convert to fraction form
    91,728.77/137,578.39 = 25,153.45/x
  3. Step 3: Cross multiply
    91,728.77x = 137,578.39 × 25,153.45
  4. Step 4: Simplify right side
    91,728.77x = 3,460,570,747.12
  5. Step 5: Solve for x
    x = 3,460,570,747.12/91,728.77
  6. Step 6: Final answer
    x = 37,726.12

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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.