Home / 91,931.76-126,863.82-51,093.18

Finding the Fourth Proportional to 91,931.76, 126,863.82 and 51,093.18

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Solution

The fourth proportional to 91,931.76, 126,863.82 and 51,093.18 is: 70,507.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,931.76 : 126,863.82 = 51,093.18 : x
  2. Step 2: Convert to fraction form
    91,931.76/126,863.82 = 51,093.18/x
  3. Step 3: Cross multiply
    91,931.76x = 126,863.82 × 51,093.18
  4. Step 4: Simplify right side
    91,931.76x = 6,481,875,990.75
  5. Step 5: Solve for x
    x = 6,481,875,990.75/91,931.76
  6. Step 6: Final answer
    x = 70,507.47

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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.