Home / 91,976.77-137,964.82-25,416.78

Finding the Fourth Proportional to 91,976.77, 137,964.82 and 25,416.78

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Solution

The fourth proportional to 91,976.77, 137,964.82 and 25,416.78 is: 38,125.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,976.77 : 137,964.82 = 25,416.78 : x
  2. Step 2: Convert to fraction form
    91,976.77/137,964.82 = 25,416.78/x
  3. Step 3: Cross multiply
    91,976.77x = 137,964.82 × 25,416.78
  4. Step 4: Simplify right side
    91,976.77x = 3,506,621,477.68
  5. Step 5: Solve for x
    x = 3,506,621,477.68/91,976.77
  6. Step 6: Final answer
    x = 38,125.08

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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.