Home / 76,966.09-115,330.06-51,907.93

Finding the Fourth Proportional to 76,966.09, 115,330.06 and 51,907.93

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Solution

The fourth proportional to 76,966.09, 115,330.06 and 51,907.93 is: 77,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,966.09 : 115,330.06 = 51,907.93 : x
  2. Step 2: Convert to fraction form
    76,966.09/115,330.06 = 51,907.93/x
  3. Step 3: Cross multiply
    76,966.09x = 115,330.06 × 51,907.93
  4. Step 4: Simplify right side
    76,966.09x = 5,986,544,681.38
  5. Step 5: Solve for x
    x = 5,986,544,681.38/76,966.09
  6. Step 6: Final answer
    x = 77,781.59

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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.