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Finding the Fourth Proportional to 99,562.80, 149,387.40 and 50,314.80

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Solution

The fourth proportional to 99,562.80, 149,387.40 and 50,314.80 is: 75,494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,562.80 : 149,387.40 = 50,314.80 : x
  2. Step 2: Convert to fraction form
    99,562.80/149,387.40 = 50,314.80/x
  3. Step 3: Cross multiply
    99,562.80x = 149,387.40 × 50,314.80
  4. Step 4: Simplify right side
    99,562.80x = 7,516,397,153.52
  5. Step 5: Solve for x
    x = 7,516,397,153.52/99,562.80
  6. Step 6: Final answer
    x = 75,494.03

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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.