Home / 91,971.04-137,934.69-25,409.71

Finding the Fourth Proportional to 91,971.04, 137,934.69 and 25,409.71

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Solution

The fourth proportional to 91,971.04, 137,934.69 and 25,409.71 is: 38,108.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,971.04 : 137,934.69 = 25,409.71 : x
  2. Step 2: Convert to fraction form
    91,971.04/137,934.69 = 25,409.71/x
  3. Step 3: Cross multiply
    91,971.04x = 137,934.69 × 25,409.71
  4. Step 4: Simplify right side
    91,971.04x = 3,504,880,471.84
  5. Step 5: Solve for x
    x = 3,504,880,471.84/91,971.04
  6. Step 6: Final answer
    x = 38,108.52

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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.