Home / 77,918.48-116,743.43-60,855.78

Finding the Fourth Proportional to 77,918.48, 116,743.43 and 60,855.78

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Solution

The fourth proportional to 77,918.48, 116,743.43 and 60,855.78 is: 91,178.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,918.48 : 116,743.43 = 60,855.78 : x
  2. Step 2: Convert to fraction form
    77,918.48/116,743.43 = 60,855.78/x
  3. Step 3: Cross multiply
    77,918.48x = 116,743.43 × 60,855.78
  4. Step 4: Simplify right side
    77,918.48x = 7,104,512,411.80
  5. Step 5: Solve for x
    x = 7,104,512,411.80/77,918.48
  6. Step 6: Final answer
    x = 91,178.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.