Home / 88,160.07-121,662.35-49,918.61

Finding the Fourth Proportional to 88,160.07, 121,662.35 and 49,918.61

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Solution

The fourth proportional to 88,160.07, 121,662.35 and 49,918.61 is: 68,888.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,160.07 : 121,662.35 = 49,918.61 : x
  2. Step 2: Convert to fraction form
    88,160.07/121,662.35 = 49,918.61/x
  3. Step 3: Cross multiply
    88,160.07x = 121,662.35 × 49,918.61
  4. Step 4: Simplify right side
    88,160.07x = 6,073,214,543.43
  5. Step 5: Solve for x
    x = 6,073,214,543.43/88,160.07
  6. Step 6: Final answer
    x = 68,888.50

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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.