Home / 88,309.07-121,869.71-50,590.61

Finding the Fourth Proportional to 88,309.07, 121,869.71 and 50,590.61

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Solution

The fourth proportional to 88,309.07, 121,869.71 and 50,590.61 is: 69,816.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,309.07 : 121,869.71 = 50,590.61 : x
  2. Step 2: Convert to fraction form
    88,309.07/121,869.71 = 50,590.61/x
  3. Step 3: Cross multiply
    88,309.07x = 121,869.71 × 50,590.61
  4. Step 4: Simplify right side
    88,309.07x = 6,165,462,486.55
  5. Step 5: Solve for x
    x = 6,165,462,486.55/88,309.07
  6. Step 6: Final answer
    x = 69,816.87

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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.