Home / 91,125.28-136,687.08-28,795.80

Finding the Fourth Proportional to 91,125.28, 136,687.08 and 28,795.80

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Solution

The fourth proportional to 91,125.28, 136,687.08 and 28,795.80 is: 43,193.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,125.28 : 136,687.08 = 28,795.80 : x
  2. Step 2: Convert to fraction form
    91,125.28/136,687.08 = 28,795.80/x
  3. Step 3: Cross multiply
    91,125.28x = 136,687.08 × 28,795.80
  4. Step 4: Simplify right side
    91,125.28x = 3,936,013,818.26
  5. Step 5: Solve for x
    x = 3,936,013,818.26/91,125.28
  6. Step 6: Final answer
    x = 43,193.43

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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.