Home / 88,221.69-121,746.43-47,935.78

Finding the Fourth Proportional to 88,221.69, 121,746.43 and 47,935.78

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Solution

The fourth proportional to 88,221.69, 121,746.43 and 47,935.78 is: 66,151.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,221.69 : 121,746.43 = 47,935.78 : x
  2. Step 2: Convert to fraction form
    88,221.69/121,746.43 = 47,935.78/x
  3. Step 3: Cross multiply
    88,221.69x = 121,746.43 × 47,935.78
  4. Step 4: Simplify right side
    88,221.69x = 5,836,010,084.27
  5. Step 5: Solve for x
    x = 5,836,010,084.27/88,221.69
  6. Step 6: Final answer
    x = 66,151.65

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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.