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Finding the Fourth Proportional to 88,393.77, 121,986.15 and 50,154.93

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Solution

The fourth proportional to 88,393.77, 121,986.15 and 50,154.93 is: 69,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,393.77 : 121,986.15 = 50,154.93 : x
  2. Step 2: Convert to fraction form
    88,393.77/121,986.15 = 50,154.93/x
  3. Step 3: Cross multiply
    88,393.77x = 121,986.15 × 50,154.93
  4. Step 4: Simplify right side
    88,393.77x = 6,118,206,814.22
  5. Step 5: Solve for x
    x = 6,118,206,814.22/88,393.77
  6. Step 6: Final answer
    x = 69,215.36

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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.