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Finding the Fourth Proportional to 91,571.84, 137,232.84 and 56,045.48

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Solution

The fourth proportional to 91,571.84, 137,232.84 and 56,045.48 is: 83,991.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,571.84 : 137,232.84 = 56,045.48 : x
  2. Step 2: Convert to fraction form
    91,571.84/137,232.84 = 56,045.48/x
  3. Step 3: Cross multiply
    91,571.84x = 137,232.84 × 56,045.48
  4. Step 4: Simplify right side
    91,571.84x = 7,691,280,389.56
  5. Step 5: Solve for x
    x = 7,691,280,389.56/91,571.84
  6. Step 6: Final answer
    x = 83,991.76

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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.