Home / 50,390.40-75,550.64-42,543.96

Finding the Fourth Proportional to 50,390.40, 75,550.64 and 42,543.96

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Solution

The fourth proportional to 50,390.40, 75,550.64 and 42,543.96 is: 63,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,390.40 : 75,550.64 = 42,543.96 : x
  2. Step 2: Convert to fraction form
    50,390.40/75,550.64 = 42,543.96/x
  3. Step 3: Cross multiply
    50,390.40x = 75,550.64 × 42,543.96
  4. Step 4: Simplify right side
    50,390.40x = 3,214,223,406.13
  5. Step 5: Solve for x
    x = 3,214,223,406.13/50,390.40
  6. Step 6: Final answer
    x = 63,786.42

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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.