Home / 88,338.24-121,909.77-50,619.78

Finding the Fourth Proportional to 88,338.24, 121,909.77 and 50,619.78

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Solution

The fourth proportional to 88,338.24, 121,909.77 and 50,619.78 is: 69,857.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,338.24 : 121,909.77 = 50,619.78 : x
  2. Step 2: Convert to fraction form
    88,338.24/121,909.77 = 50,619.78/x
  3. Step 3: Cross multiply
    88,338.24x = 121,909.77 × 50,619.78
  4. Step 4: Simplify right side
    88,338.24x = 6,171,045,737.25
  5. Step 5: Solve for x
    x = 6,171,045,737.25/88,338.24
  6. Step 6: Final answer
    x = 69,857.01

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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.