Home / 77,945.60-107,588.48-67,448

Finding the Fourth Proportional to 77,945.60, 107,588.48 and 67,448

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Solution

The fourth proportional to 77,945.60, 107,588.48 and 67,448 is: 93,098.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.60 : 107,588.48 = 67,448 : x
  2. Step 2: Convert to fraction form
    77,945.60/107,588.48 = 67,448/x
  3. Step 3: Cross multiply
    77,945.60x = 107,588.48 × 67,448
  4. Step 4: Simplify right side
    77,945.60x = 7,256,627,799.04
  5. Step 5: Solve for x
    x = 7,256,627,799.04/77,945.60
  6. Step 6: Final answer
    x = 93,098.62

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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.