Home / 91,076.15-125,743.65-62,443.46

Finding the Fourth Proportional to 91,076.15, 125,743.65 and 62,443.46

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Solution

The fourth proportional to 91,076.15, 125,743.65 and 62,443.46 is: 86,212.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,076.15 : 125,743.65 = 62,443.46 : x
  2. Step 2: Convert to fraction form
    91,076.15/125,743.65 = 62,443.46/x
  3. Step 3: Cross multiply
    91,076.15x = 125,743.65 × 62,443.46
  4. Step 4: Simplify right side
    91,076.15x = 7,851,868,579.03
  5. Step 5: Solve for x
    x = 7,851,868,579.03/91,076.15
  6. Step 6: Final answer
    x = 86,212.13

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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.